diff --git a/LICENSE b/LICENSE
index c155965f8..2bbe2d1de 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 Friendica Communications Server
-Copyright (c) 2010-2016 the Friendica Project
+Copyright (c) 2010-2017 the Friendica Project
 
 	This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License as published by
diff --git a/boot.php b/boot.php
index d7b8268b7..cd6db384a 100644
--- a/boot.php
+++ b/boot.php
@@ -1540,7 +1540,7 @@ function check_db() {
  * Sets the base url for use in cmdline programs which don't have
  * $_SERVER variables
  */
-function check_url(App &$a) {
+function check_url(App $a) {
 
 	$url = get_config('system','url');
 
@@ -1562,7 +1562,7 @@ function check_url(App &$a) {
 /**
  * @brief Automatic database updates
  */
-function update_db(App &$a) {
+function update_db(App $a) {
 	$build = get_config('system','build');
 	if(! x($build))
 		$build = set_config('system','build',DB_UPDATE_VERSION);
@@ -1678,7 +1678,7 @@ function run_update_function($x) {
  * @param App $a
  *
 	 */
-function check_plugins(App &$a) {
+function check_plugins(App $a) {
 
 	$r = q("SELECT * FROM `addon` WHERE `installed` = 1");
 	if (dbm::is_result($r))
@@ -2414,7 +2414,7 @@ function get_temppath() {
 }
 
 /// @deprecated
-function set_template_engine(App &$a, $engine = 'internal') {
+function set_template_engine(App $a, $engine = 'internal') {
 /// @note This function is no longer necessary, but keep it as a wrapper to the class method
 /// to avoid breaking themes again unnecessarily
 
diff --git a/doc/Plugins.md b/doc/Plugins.md
index 6460fd5a0..3a25dc721 100644
--- a/doc/Plugins.md
+++ b/doc/Plugins.md
@@ -40,7 +40,7 @@ Arguments
 ---
 Your hook callback functions will be called with at least one and possibly two arguments
 
-    function myhook_function(&$a, &$b) {
+    function myhook_function(App $a, &$b) {
 
     }
 
@@ -77,9 +77,9 @@ This will include:
     $a->argc = 3
     $a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
 
-Your module functions will often contain the function plugin_name_content(App &$a), which defines and returns the page body content.
-They may also contain plugin_name_post(App &$a) which is called before the _content function and typically handles the results of POST forms.
-You may also have plugin_name_init(App &$a) which is called very early on and often does module initialisation.
+Your module functions will often contain the function plugin_name_content(App $a), which defines and returns the page body content.
+They may also contain plugin_name_post(App $a) which is called before the _content function and typically handles the results of POST forms.
+You may also have plugin_name_init(App $a) which is called very early on and often does module initialisation.
 
 Templates
 ---
@@ -285,7 +285,7 @@ $b is an array with:
 is called after the other queries have passed.
 The registered function can add, change or remove the acl_lookup() variables.
 
-    'results' => array of the acl_lookup() vars 
+    'results' => array of the acl_lookup() vars
 
 
 Complete list of hook callbacks
diff --git a/doc/autoloader.md b/doc/autoloader.md
index 25ffd7fe4..69c62451c 100644
--- a/doc/autoloader.md
+++ b/doc/autoloader.md
@@ -32,7 +32,7 @@ Let's say you have a php file in "include/" that define a very useful class:
     file: include/ItemsManager.php
     <?php
     namespace \Friendica;
-    
+
     class ItemsManager {
        public function getAll() { ... }
        public function getByID($id) { ... }
@@ -67,11 +67,11 @@ The code will be something like:
 ```
     file: mod/network.php
     <?php
-    
-    function network_content(App &$a) {
+
+    function network_content(App $a) {
        $itemsmanager = new \Friendica\ItemsManager();
        $items = $itemsmanager->getAll();
-    
+
        // pass $items to template
        // return result
     }
@@ -86,7 +86,7 @@ Going further: now we have a bunch of "*Manager" classes that cause some code du
     file: include/BaseManager.php
     <?php
     namespace \Friendica;
-    
+
     class BaseManager {
       public function thatFunctionEveryManagerUses() { ... }
     }
@@ -98,7 +98,7 @@ and then let's change the ItemsManager class to use this code
     file: include/ItemsManager.php
     <?php
     namespace \Friendica;
-    
+
     class ItemsManager extends BaseManager {
        public function getAll() { ... }
        public function getByID($id) { ... }
@@ -110,9 +110,9 @@ It works with the "BaseManager" example here, it works when we need to call stat
 
 ```
     file: include/dfrn.php
-    <?php    
+    <?php
     namespace \Friendica;
-    
+
     class dfrn {
       public static function  mail($item, $owner) { ... }
     }
@@ -121,7 +121,7 @@ It works with the "BaseManager" example here, it works when we need to call stat
 ```
     file: mod/mail.php
     <?php
-    
+
     mail_post($a){
      ...
      \Friendica\dfrn::mail($item, $owner);
@@ -134,15 +134,15 @@ If your code is in same namespace as the class you need, you don't need to prepe
 ```
     file: include/delivery.php
     <?php
-    
+
     namespace \Friendica;
-    
-    // this is the same content of current include/delivery.php, 
+
+    // this is the same content of current include/delivery.php,
     // but has been declared to be in "Friendica" namespace
-    
+
     [...]
     switch($contact['network']) {
-    
+
         case NETWORK_DFRN:
             if ($mail) {
                 $item['body'] = ...
@@ -160,11 +160,11 @@ But if you want to use classes from another library, you need to use the full na
 
 ```
     <?php
-    namespace \Frienidca;
-    
+    namespace \Friendica;
+
     class Diaspora {
       public function md2bbcode() {
-        $html = \Michelf\MarkdownExtra::defaultTransform($text); 
+        $html = \Michelf\MarkdownExtra::defaultTransform($text);
       }
     }
 ```
@@ -173,13 +173,13 @@ if you use that class in many places of the code and you don't want to write the
 
 ```
     <?php
-    namespace \Frienidca;
-    
+    namespace \Friendica;
+
     use \Michelf\MarkdownExtra;
-    
+
     class Diaspora {
       public function md2bbcode() {
-        $html = MarkdownExtra::defaultTransform($text); 
+        $html = MarkdownExtra::defaultTransform($text);
       }
     }
 ```
@@ -190,7 +190,7 @@ You can go more deep if you want to, like:
 ```
     <?php
     namespace \Friendica\Network;
-    
+
     class DFRN {
     }
 ```
@@ -200,7 +200,7 @@ or
 ```
     <?php
     namespace \Friendica\DBA;
-    
+
     class MySQL {
     }
 ```
diff --git a/doc/de/Plugins.md b/doc/de/Plugins.md
index b2c3f849f..8b1c71177 100644
--- a/doc/de/Plugins.md
+++ b/doc/de/Plugins.md
@@ -40,7 +40,7 @@ Argumente
 
 Deine Hook-Callback-Funktion wird mit mindestens einem und bis zu zwei Argumenten aufgerufen
 
-    function myhook_function(&$a, &$b) {
+    function myhook_function(App $a, &$b) {
 
     }
 
@@ -67,9 +67,9 @@ So würde http://example.com/plugin/arg1/arg2 nach einem Modul "plugin" suchen u
     $a->argc = 3
     $a->argv = array(0 => 'plugin', 1 => 'arg1', 2 => 'arg2');
 
-Deine Modulfunktionen umfassen oft die Funktion plugin_name_content(App &$a), welche den Seiteninhalt definiert und zurückgibt.
-Sie können auch plugin_name_post(App &$a) umfassen, welches vor der content-Funktion aufgerufen wird und normalerweise die Resultate der POST-Formulare handhabt.
-Du kannst ebenso plugin_name_init(App &$a) nutzen, was oft frühzeitig aufgerufen wird und das Modul initialisert.
+Deine Modulfunktionen umfassen oft die Funktion plugin_name_content(App $a), welche den Seiteninhalt definiert und zurückgibt.
+Sie können auch plugin_name_post(App $a) umfassen, welches vor der content-Funktion aufgerufen wird und normalerweise die Resultate der POST-Formulare handhabt.
+Du kannst ebenso plugin_name_init(App $a) nutzen, was oft frühzeitig aufgerufen wird und das Modul initialisert.
 
 
 Derzeitige Hooks
@@ -311,7 +311,7 @@ mod/photos.php:			call_hooks('photo_post_end',intval($item_id));
 
 mod/photos.php:			call_hooks('photo_upload_form',$ret);
 
-mod/friendica.php:		call_hooks('about_hook', $o); 	
+mod/friendica.php:		call_hooks('about_hook', $o);
 
 mod/editpost.php:		call_hooks('jot_tool', $jotplugins);
 
diff --git a/doc/themes.md b/doc/themes.md
index 0b8f6cb83..b553debfd 100644
--- a/doc/themes.md
+++ b/doc/themes.md
@@ -122,7 +122,7 @@ the 1st part of the line is the name of the CSS file (without the .css) the 2nd
 Calling the t() function with the common name makes the string translateable.
 The selected 1st part will be saved in the database by the theme_post function.
 
-    function theme_post(App &$a){
+    function theme_post(App $a){
         // non local users shall not pass
         if (! local_user()) {
             return;
@@ -168,7 +168,7 @@ The content of this file should be something like
 
     <?php
     /* meta informations for the theme, see below */
-    function duepuntozero_lr_init(App &$a) {
+    function duepuntozero_lr_init(App $a) {
         $a-> theme_info = array(
             'extends' => 'duepuntozero'.
         );
@@ -251,7 +251,7 @@ Next crucial part of the theme.php file is a definition of an init function.
 The name of the function is <theme-name>_init.
 So in the case of quattro it is
 
-    function quattro_init(App &$a) {
+    function quattro_init(App $a) {
       $a->theme_info = array();
       set_template_engine($a, 'smarty3');
     }
diff --git a/include/Contact.php b/include/Contact.php
index 9f0dd45c5..15b681371 100644
--- a/include/Contact.php
+++ b/include/Contact.php
@@ -612,7 +612,7 @@ function get_contact($url, $uid = 0, $no_update = false) {
  *
  * @return string posts in HTML
  */
-function posts_from_gcontact($a, $gcontact_id) {
+function posts_from_gcontact(App $a, $gcontact_id) {
 
 	require_once('include/conversation.php');
 
@@ -664,7 +664,7 @@ function posts_from_gcontact($a, $gcontact_id) {
  *
  * @return string posts in HTML
  */
-function posts_from_contact_url($a, $contact_url) {
+function posts_from_contact_url(App $a, $contact_url) {
 
 	require_once('include/conversation.php');
 
diff --git a/include/Photo.php b/include/Photo.php
index 1a97fe2fe..828dce82d 100644
--- a/include/Photo.php
+++ b/include/Photo.php
@@ -283,7 +283,7 @@ class Photo {
 			do {
 
 				// FIXME - implement horizantal bias for scaling as in followin GD functions
-				// to allow very tall images to be constrained only horizontally. 
+				// to allow very tall images to be constrained only horizontally.
 
 				$this->image->scaleImage($dest_width, $dest_height);
 			} while ($this->image->nextImage());
@@ -943,7 +943,7 @@ function scale_image($width, $height, $max) {
 	return array("width" => $dest_width, "height" => $dest_height);
 }
 
-function store_photo($a, $uid, $imagedata = "", $url = "") {
+function store_photo(App $a, $uid, $imagedata = "", $url = "") {
 	$r = q("SELECT `user`.`nickname`, `user`.`page-flags`, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
 		WHERE `user`.`uid` = %d AND `user`.`blocked` = 0 AND `contact`.`self` = 1 LIMIT 1",
 		intval($uid));
diff --git a/include/acl_selectors.php b/include/acl_selectors.php
index 75a4985c8..fccdb8066 100644
--- a/include/acl_selectors.php
+++ b/include/acl_selectors.php
@@ -372,7 +372,7 @@ function populate_acl($user = null, $show_jotnets = false) {
 
 }
 
-function construct_acl_data(&$a, $user) {
+function construct_acl_data(App $a, $user) {
 
 	// Get group and contact information for html ACL selector
 	$acl_data = acl_lookup($a, 'html');
@@ -404,7 +404,7 @@ function construct_acl_data(&$a, $user) {
 
 }
 
-function acl_lookup(&$a, $out_type = 'json') {
+function acl_lookup(App $a, $out_type = 'json') {
 
 	if (!local_user()) {
 		return '';
@@ -687,11 +687,11 @@ function acl_lookup(&$a, $out_type = 'json') {
 }
 /**
  * @brief Searching for global contacts for autocompletion
- * 
+ *
  * @param App $a
  * @return array with the search results
  */
-function navbar_complete(App &$a) {
+function navbar_complete(App $a) {
 
 //	logger('navbar_complete');
 
diff --git a/include/api.php b/include/api.php
index 3543a3836..91a3a34d1 100644
--- a/include/api.php
+++ b/include/api.php
@@ -133,7 +133,7 @@
 	 * @hook 'logged_in'
 	 * 		array $user	logged user record
 	 */
-	function api_login(App &$a){
+	function api_login(App $a){
 		// login with oauth
 		try{
 			$oauth = new FKOAuth1();
@@ -251,7 +251,7 @@
 	 * @param App $a
 	 * @return string API call result
 	 */
-	function api_call(App &$a){
+	function api_call(App $a){
 		global $API, $called_api;
 
 		$type="json";
@@ -404,7 +404,7 @@
 	 * @param array $user_info
 	 * @return array
 	 */
-	function api_rss_extra(&$a, $arr, $user_info){
+	function api_rss_extra(App $a, $arr, $user_info){
 		if (is_null($user_info)) $user_info = api_get_user($a);
 		$arr['$user'] = $user_info;
 		$arr['$rss'] = array(
@@ -444,7 +444,7 @@
 	 * @param int|string $contact_id Contact ID or URL
 	 * @param string $type Return type (for errors)
 	 */
-	function api_get_user(&$a, $contact_id = Null, $type = "json"){
+	function api_get_user(App $a, $contact_id = Null, $type = "json"){
 		global $called_api;
 		$user = null;
 		$extra_query = "";
@@ -712,7 +712,7 @@
 	 * @param array $item : item from db
 	 * @return array(array:author, array:owner)
 	 */
-	function api_item_get_user(&$a, $item) {
+	function api_item_get_user(App $a, $item) {
 
 		$status_user = api_get_user($a, $item["author-link"]);
 
@@ -2451,7 +2451,7 @@
 							'homepage' => $profile['homepage'],
 							'users' => null);
 			return $profile;
-		} 
+		}
 	}
 
 	/**
@@ -2874,14 +2874,14 @@
 		// BadRequestException if no id specified (for clients using Twitter API)
 		if ($id == 0) throw new BadRequestException('Message id not specified');
 
-		// add parent-uri to sql command if specified by calling app		
+		// add parent-uri to sql command if specified by calling app
 		$sql_extra = ($parenturi != "" ? " AND `parent-uri` = '" . dbesc($parenturi) . "'" : "");
 
 		// get data of the specified message id
 		$r = q("SELECT `id` FROM `mail` WHERE `uid` = %d AND `id` = %d" . $sql_extra,
-			intval($uid), 
+			intval($uid),
 			intval($id));
-	
+
 		// error message if specified id is not in database
 		if (!dbm::is_result($r)) {
 			if ($verbose == "true") {
@@ -2893,8 +2893,8 @@
 		}
 
 		// delete message
-		$result = q("DELETE FROM `mail` WHERE `uid` = %d AND `id` = %d" . $sql_extra, 
-			intval($uid), 
+		$result = q("DELETE FROM `mail` WHERE `uid` = %d AND `id` = %d" . $sql_extra,
+			intval($uid),
 			intval($id));
 
 		if ($verbose == "true") {
@@ -3860,7 +3860,7 @@
 
 		// get data of the specified message id
 		$r = q("SELECT `id` FROM `mail` WHERE `id` = %d AND `uid` = %d",
-			intval($id), 
+			intval($id),
 			intval($uid));
 		// error message if specified id is not in database
 		if (!dbm::is_result($r)) {
@@ -3869,8 +3869,8 @@
 		}
 
 		// update seen indicator
-		$result = q("UPDATE `mail` SET `seen` = 1 WHERE `id` = %d AND `uid` = %d", 
-			intval($id), 
+		$result = q("UPDATE `mail` SET `seen` = 1 WHERE `id` = %d AND `uid` = %d",
+			intval($id),
 			intval($uid));
 
 		if ($result) {
@@ -3921,7 +3921,7 @@
 		// message if nothing was found
 		if (!dbm::is_result($r))
 			$success = array('success' => false, 'search_results' => 'problem with query');
-		else if (count($r) == 0) 
+		else if (count($r) == 0)
 			$success = array('success' => false, 'search_results' => 'nothing found');
 		else {
 			$ret = Array();
diff --git a/include/conversation.php b/include/conversation.php
index 36eded8e8..571e2face 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -466,7 +466,7 @@ function item_condition() {
  */
 
 if(!function_exists('conversation')) {
-function conversation(&$a, $items, $mode, $update, $preview = false) {
+function conversation(App $a, $items, $mode, $update, $preview = false) {
 
 	require_once('include/bbcode.php');
 	require_once('include/Contact.php');
diff --git a/include/cron.php b/include/cron.php
index 97744ed27..5a9054b11 100644
--- a/include/cron.php
+++ b/include/cron.php
@@ -343,7 +343,7 @@ function cron_poll_contacts($argc, $argv) {
  *
  * @param App $a
  */
-function cron_clear_cache(App &$a) {
+function cron_clear_cache(App $a) {
 
 	$last = get_config('system','cache_last_cleared');
 
@@ -430,7 +430,7 @@ function cron_clear_cache(App &$a) {
  *
  * @param App $a
  */
-function cron_repair_diaspora(App &$a) {
+function cron_repair_diaspora(App $a) {
 	$r = q("SELECT `id`, `url` FROM `contact`
 		WHERE `network` = '%s' AND (`batch` = '' OR `notify` = '' OR `poll` = '' OR pubkey = '')
 			ORDER BY RAND() LIMIT 50", dbesc(NETWORK_DIASPORA));
diff --git a/include/diaspora.php b/include/diaspora.php
index fde086e20..fc88c79bf 100644
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -325,8 +325,9 @@ class Diaspora {
 				logger("delivering to: ".$rr["username"]);
 				self::dispatch($rr,$msg);
 			}
-		} else
-			logger("No subscribers for ".$msg["author"]." ".print_r($msg, true));
+		} else {
+			logger("No subscribers for ".$msg["author"]." ".print_r($msg, true), LOGGER_DEBUG);
+		}
 
 		return $message_id;
 	}
diff --git a/include/event.php b/include/event.php
index a1ff9bb33..616018bb7 100644
--- a/include/event.php
+++ b/include/event.php
@@ -206,7 +206,7 @@ function bbtoevent($s) {
 }
 
 
-function sort_by_date(App &$a) {
+function sort_by_date(App $a) {
 
 	usort($a,'ev_compare');
 	return $a;
@@ -495,7 +495,7 @@ function get_event_strings() {
 
 /**
  * @brief Get an event by its event ID
- * 
+ *
  * @param type $owner_uid The User ID of the owner of the event
  * @param type $event_params An assoziative array with
  *	int 'event_id' => The ID of the event in the event table
@@ -523,15 +523,15 @@ function event_by_id($owner_uid = 0, $event_params, $sql_extra = '') {
 
 /**
  * @brief Get all events in a specific timeframe
- * 
+ *
  * @param int $owner_uid The User ID of the owner of the events
  * @param array $event_params An assoziative array with
- *	int 'ignored' => 
+ *	int 'ignored' =>
  *	string 'start' => Start time of the timeframe
  *	string 'finish' => Finish time of the timeframe
- *	string 'adjust_start' => 
  *	string 'adjust_start' =>
- *	
+ *	string 'adjust_start' =>
+ *
  * @param string $sql_extra Additional sql conditions (e.g. permission request)
  * @return array Query results
  */
@@ -564,7 +564,7 @@ function events_by_date($owner_uid = 0, $event_params, $sql_extra = '') {
 
 /**
  * @brief Convert an array query results in an arry which could be used by the events template
- * 
+ *
  * @param array $arr Event query array
  * @return array Event array for the template
  */
@@ -623,11 +623,11 @@ function process_events ($arr) {
 
 /**
  * @brief Format event to export format (ical/csv)
- * 
+ *
  * @param array $events Query result for events
  * @param string $format The output format (ical/csv)
  * @param string $timezone The timezone of the user (not implemented yet)
- * 
+ *
  * @return string Content according to selected export format
  */
 function event_format_export ($events, $format = 'ical', $timezone) {
@@ -641,7 +641,7 @@ function event_format_export ($events, $format = 'ical', $timezone) {
 			$o = '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
 
 			foreach ($events as $event) {
-			/// @todo the time / date entries don't include any information about the 
+			/// @todo the time / date entries don't include any information about the
 			// timezone the event is scheduled in :-/
 				$tmp1 = strtotime($event['start']);
 				$tmp2 = strtotime($event['finish']);
@@ -650,7 +650,7 @@ function event_format_export ($events, $format = 'ical', $timezone) {
 				$o .= '"'.$event['summary'].'", "'.strftime($date_format, $tmp1) .
 					'", "'.strftime($time_format, $tmp1).'", "'.$event['desc'] .
 					'", "'.strftime($date_format, $tmp2) .
-					'", "'.strftime($time_format, $tmp2) . 
+					'", "'.strftime($time_format, $tmp2) .
 					'", "'.$event['location'].'"' . PHP_EOL;
 			}
 			break;
@@ -672,7 +672,7 @@ function event_format_export ($events, $format = 'ical', $timezone) {
 			foreach ($events as $event) {
 				if ($event['adjust'] == 1) {
 					$UTC = 'Z';
-				} else { 
+				} else {
 					$UTC = '';
 				}
 				$o .= 'BEGIN:VEVENT' . PHP_EOL;
@@ -716,16 +716,16 @@ function event_format_export ($events, $format = 'ical', $timezone) {
 
 /**
  * @brief Get all events for a user ID
- * 
+ *
  *    The query for events is done permission sensitive
  *    If the user is the owner of the calendar he/she
  *    will get all of his/her available events.
  *    If the user is only a visitor only the public events will
  *    be available
- * 
+ *
  * @param int $uid The user ID
  * @param int $sql_extra Additional sql conditions for permission
- * 
+ *
  * @return array Query results
  */
 function events_by_uid($uid = 0, $sql_extra = '') {
@@ -736,8 +736,8 @@ function events_by_uid($uid = 0, $sql_extra = '') {
 	if($sql_extra == '')
 		$sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' ";
 
-	//  does the user who requests happen to be the owner of the events 
-	//  requested? then show all of your events, otherwise only those that 
+	//  does the user who requests happen to be the owner of the events
+	//  requested? then show all of your events, otherwise only those that
 	//  don't have limitations set in allow_cid and allow_gid
 	if (local_user() == $uid) {
 		$r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
@@ -756,7 +756,7 @@ function events_by_uid($uid = 0, $sql_extra = '') {
 }
 
 /**
- * 
+ *
  * @param int $uid The user ID
  * @param string $format Output format (ical/csv)
  * @return array With the results
@@ -764,7 +764,7 @@ function events_by_uid($uid = 0, $sql_extra = '') {
  *	string 'format' => The output format
  *	string 'extension' => The file extension of the output format
  *	string 'content' => The formatted output content
- * 
+ *
  * @todo Respect authenticated users with events_by_uid()
  */
 function event_export($uid, $format = 'ical') {
@@ -815,7 +815,7 @@ function event_export($uid, $format = 'ical') {
 
 /**
  * @brief Get the events widget
- * 
+ *
  * @return string Formated html of the evens widget
  */
 function widget_events() {
@@ -835,11 +835,11 @@ function widget_events() {
 
 	// Cal logged in user (test permission at foreign profile page)
 	// If the $owner uid is available we know it is part of one of the profile pages (like /cal)
-	// So we have to test if if it's the own profile page of the logged in user 
+	// So we have to test if if it's the own profile page of the logged in user
 	// or a foreign one. For foreign profile pages we need to check if the feature
 	// for exporting the cal is enabled (otherwise the widget would appear for logged in users
 	// on foreigen profile pages even if the widget is disabled)
-	if(intval($owner_uid) && local_user() !== $owner_uid && ! feature_enabled($owner_uid, "export_calendar")) 
+	if(intval($owner_uid) && local_user() !== $owner_uid && ! feature_enabled($owner_uid, "export_calendar"))
 		return;
 
 	// If it's a kind of profile page (intval($owner_uid)) return if the user not logged in and
diff --git a/include/identity.php b/include/identity.php
index a302dc34c..c18bc3a80 100644
--- a/include/identity.php
+++ b/include/identity.php
@@ -31,7 +31,7 @@ require_once("mod/proxy.php");
  * @param int $profile
  * @param array $profiledata
  */
-function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {
+function profile_load(App $a, $nickname, $profile = 0, $profiledata = array()) {
 
 	$user = q("SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
 		dbesc($nickname)
@@ -118,12 +118,12 @@ function profile_load(&$a, $nickname, $profile = 0, $profiledata = array()) {
 
 /**
  * @brief Get all profil data of a local user
- * 
+ *
  * If the viewer is an authenticated remote viewer, the profile displayed is the
  * one that has been configured for his/her viewing in the Contact manager.
  * Passing a non-zero profile ID can also allow a preview of a selected profile
  * by the owner
- * 
+ *
  * @param string $nickname
  * @param int $uid
  * @param int $profile
@@ -177,17 +177,17 @@ function get_profiledata_by_nick($nickname, $uid = 0, $profile = 0) {
 
 /**
  * @brief Formats a profile for display in the sidebar.
- * 
+ *
  * It is very difficult to templatise the HTML completely
  * because of all the conditional logic.
- * 
+ *
  * @param array $profile
  * @param int $block
- * 
+ *
  * @return HTML string stuitable for sidebar inclusion
- * 
+ *
  * @note Returns empty string if passed $profile is wrong type or not populated
- * 
+ *
  * @hooks 'profile_sidebar_enter'
  *      array $profile - profile data
  * @hooks 'profile_sidebar'
@@ -598,7 +598,7 @@ function get_events() {
 	));
 }
 
-function advanced_profile(App &$a) {
+function advanced_profile(App $a) {
 
 	$o = '';
 	$uid = $a->profile['uid'];
@@ -755,7 +755,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		array(
 			'label'=>t('Status'),
 			'url' => $url,
-			'sel' => ((!isset($tab)&&$a->argv[0]=='profile')?'active':''),
+			'sel' => ((!isset($tab) && $a->argv[0]=='profile')?'active':''),
 			'title' => t('Status Messages and Posts'),
 			'id' => 'status-tab',
 			'accesskey' => 'm',
@@ -771,7 +771,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		array(
 			'label' => t('Photos'),
 			'url'	=> App::get_baseurl() . '/photos/' . $nickname,
-			'sel'	=> ((!isset($tab)&&$a->argv[0]=='photos')?'active':''),
+			'sel'	=> ((!isset($tab) && $a->argv[0]=='photos')?'active':''),
 			'title' => t('Photo Albums'),
 			'id' => 'photo-tab',
 			'accesskey' => 'h',
@@ -779,7 +779,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		array(
 			'label' => t('Videos'),
 			'url'	=> App::get_baseurl() . '/videos/' . $nickname,
-			'sel'	=> ((!isset($tab)&&$a->argv[0]=='videos')?'active':''),
+			'sel'	=> ((!isset($tab) && $a->argv[0]=='videos')?'active':''),
 			'title' => t('Videos'),
 			'id' => 'video-tab',
 			'accesskey' => 'v',
@@ -791,7 +791,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 			$tabs[] = array(
 				'label' => t('Events'),
 				'url'	=> App::get_baseurl() . '/events',
-				'sel' 	=>((!isset($tab)&&$a->argv[0]=='events')?'active':''),
+				'sel' 	=>((!isset($tab) && $a->argv[0]=='events')?'active':''),
 				'title' => t('Events and Calendar'),
 				'id' => 'events-tab',
 				'accesskey' => 'e',
@@ -802,7 +802,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		$tabs[] = array(
 				'label' => t('Events'),
 				'url'	=> App::get_baseurl() . '/cal/' . $nickname,
-				'sel' 	=>((!isset($tab)&&$a->argv[0]=='cal')?'active':''),
+				'sel' 	=>((!isset($tab) && $a->argv[0]=='cal')?'active':''),
 				'title' => t('Events and Calendar'),
 				'id' => 'events-tab',
 				'accesskey' => 'e',
@@ -813,7 +813,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		$tabs[] = array(
 			'label' => t('Personal Notes'),
 			'url'	=> App::get_baseurl() . '/notes',
-			'sel' 	=>((!isset($tab)&&$a->argv[0]=='notes')?'active':''),
+			'sel' 	=>((!isset($tab) && $a->argv[0]=='notes')?'active':''),
 			'title' => t('Only You Can See This'),
 			'id' => 'notes-tab',
 			'accesskey' => 't',
@@ -824,7 +824,7 @@ function profile_tabs($a, $is_owner=False, $nickname=Null){
 		$tabs[] = array(
 			'label' => t('Contacts'),
 			'url'	=> App::get_baseurl() . '/viewcontacts/' . $nickname,
-			'sel'	=> ((!isset($tab)&&$a->argv[0]=='viewcontacts')?'active':''),
+			'sel'	=> ((!isset($tab) && $a->argv[0]=='viewcontacts')?'active':''),
 			'title' => t('Contacts'),
 			'id' => 'viewcontacts-tab',
 			'accesskey' => 'k',
@@ -845,7 +845,7 @@ function get_my_url() {
 	return false;
 }
 
-function zrl_init(App &$a) {
+function zrl_init(App $a) {
 	$tmp_str = get_my_url();
 	if(validate_url($tmp_str)) {
 
@@ -891,7 +891,7 @@ function zrl($s,$force = false) {
  * settings except their own while on this site.
  *
  * @return int user ID
- * 
+ *
  * @note Returns local_user instead of user ID if "always_my_theme"
  *      is set to true
  */
diff --git a/include/nav.php b/include/nav.php
index bd933929d..fe4c50818 100644
--- a/include/nav.php
+++ b/include/nav.php
@@ -1,6 +1,6 @@
 <?php
 
-function nav(App &$a) {
+function nav(App $a) {
 
 	/*
 	 *
diff --git a/include/ostatus.php b/include/ostatus.php
index f00f68297..ba64f493d 100644
--- a/include/ostatus.php
+++ b/include/ostatus.php
@@ -2072,7 +2072,7 @@ class ostatus {
 	 *
 	 * @return string XML feed
 	 */
-	public static function feed(&$a, $owner_nick, $last_update) {
+	public static function feed(App $a, $owner_nick, $last_update) {
 
 		$r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
 				FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
diff --git a/include/plaintext.php b/include/plaintext.php
index 830272867..632abf30c 100644
--- a/include/plaintext.php
+++ b/include/plaintext.php
@@ -296,7 +296,7 @@ function shortenmsg($msg, $limit, $twitter = false) {
  *
  * @return string The converted message
  */
-function plaintext($a, $b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "") {
+function plaintext(App $a, $b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "") {
 
 	// Remove the hash tags
 	$URLSearchString = "^\[\]";
diff --git a/include/redir.php b/include/redir.php
index d29159ed0..76e30a6ea 100644
--- a/include/redir.php
+++ b/include/redir.php
@@ -1,6 +1,6 @@
 <?php
 
-function auto_redir(&$a, $contact_nick) {
+function auto_redir(App $a, $contact_nick) {
 
 	// prevent looping
 
@@ -70,7 +70,7 @@ function auto_redir(&$a, $contact_nick) {
 
 		if(strlen($dfrn_id) < 3)
 			return;
-			
+
 		$sec = random_string();
 
 		q("INSERT INTO `profile_check` ( `uid`, `cid`, `dfrn_id`, `sec`, `expire`)
@@ -84,9 +84,9 @@ function auto_redir(&$a, $contact_nick) {
 
 		$url = curPageURL();
 
-		logger('auto_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG); 
+		logger('auto_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG);
 		$dest = (($url) ? '&destination_url=' . $url : '');
-		goaway ($r[0]['poll'] . '?dfrn_id=' . $dfrn_id 
+		goaway ($r[0]['poll'] . '?dfrn_id=' . $dfrn_id
 			. '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=profile&sec=' . $sec . $dest );
 	}
 
diff --git a/include/security.php b/include/security.php
index cd00b5f7b..c37951856 100644
--- a/include/security.php
+++ b/include/security.php
@@ -106,7 +106,7 @@ function authenticate_success($user_record, $login_initial = false, $interactive
 
 
 
-function can_write_wall(&$a,$owner) {
+function can_write_wall(App $a, $owner) {
 
 	static $verified = 0;
 
@@ -148,8 +148,8 @@ function can_write_wall(&$a,$owner) {
 				return false;
 			}
 
-			$r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `user`.`uid` = `contact`.`uid` 
-				WHERE `contact`.`uid` = %d AND `contact`.`id` = %d AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
+			$r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `user`.`uid` = `contact`.`uid`
+				WHERE `contact`.`uid` = %d AND `contact`.`id` = %d AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 				AND `user`.`blockwall` = 0 AND `readonly` = 0  AND ( `contact`.`rel` IN ( %d , %d ) OR `user`.`page-flags` = %d ) LIMIT 1",
 				intval($owner),
 				intval($cid),
@@ -183,10 +183,10 @@ function permissions_sql($owner_id,$remote_verified = false,$groups = null) {
 	 * default permissions - anonymous user
 	 */
 
-	$sql = " AND allow_cid = '' 
-			 AND allow_gid = '' 
-			 AND deny_cid  = '' 
-			 AND deny_gid  = '' 
+	$sql = " AND allow_cid = ''
+			 AND allow_gid = ''
+			 AND deny_cid  = ''
+			 AND deny_gid  = ''
 	";
 
 	/**
@@ -194,11 +194,11 @@ function permissions_sql($owner_id,$remote_verified = false,$groups = null) {
 	 */
 
 	if(($local_user) && ($local_user == $owner_id)) {
-		$sql = ''; 
+		$sql = '';
 	}
 
 	/**
-	 * Authenticated visitor. Unless pre-verified, 
+	 * Authenticated visitor. Unless pre-verified,
 	 * check that the contact belongs to this $owner_id
 	 * and load the groups the visitor belongs to.
 	 * If pre-verified, the caller is expected to have already
@@ -224,11 +224,11 @@ function permissions_sql($owner_id,$remote_verified = false,$groups = null) {
 			if(is_array($groups) && count($groups)) {
 				foreach($groups as $g)
 					$gs .= '|<' . intval($g) . '>';
-			} 
+			}
 
 			/*$sql = sprintf(
-				" AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' ) 
-				  AND ( deny_cid  = '' OR  NOT deny_cid REGEXP '<%d>' ) 
+				" AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' )
+				  AND ( deny_cid  = '' OR  NOT deny_cid REGEXP '<%d>' )
 				  AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
 				  AND ( deny_gid  = '' OR NOT deny_gid REGEXP '%s')
 				",
@@ -280,7 +280,7 @@ function item_permissions_sql($owner_id,$remote_verified = false,$groups = null)
 	}
 
 	/**
-	 * Authenticated visitor. Unless pre-verified, 
+	 * Authenticated visitor. Unless pre-verified,
 	 * check that the contact belongs to this $owner_id
 	 * and load the groups the visitor belongs to.
 	 * If pre-verified, the caller is expected to have already
@@ -306,13 +306,13 @@ function item_permissions_sql($owner_id,$remote_verified = false,$groups = null)
 			if(is_array($groups) && count($groups)) {
 				foreach($groups as $g)
 					$gs .= '|<' . intval($g) . '>';
-			} 
+			}
 
 			$sql = sprintf(
-				/*" AND ( private = 0 OR ( private in (1,2) AND wall = 1 AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' ) 
-				  AND ( deny_cid  = '' OR  NOT deny_cid REGEXP '<%d>' ) 
+				/*" AND ( private = 0 OR ( private in (1,2) AND wall = 1 AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' )
+				  AND ( deny_cid  = '' OR  NOT deny_cid REGEXP '<%d>' )
 				  AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
-				  AND ( deny_gid  = '' OR NOT deny_gid REGEXP '%s'))) 
+				  AND ( deny_gid  = '' OR NOT deny_gid REGEXP '%s')))
 				",
 				intval($remote_user),
 				intval($remote_user),
@@ -345,29 +345,29 @@ function item_permissions_sql($owner_id,$remote_verified = false,$groups = null)
  *    If the new page contains by any chance external elements, then the used security token is exposed by the referrer.
  *    Actually, important actions should not be triggered by Links / GET-Requests at all, but somethimes they still are,
  *    so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
- */ 
+ */
 function get_form_security_token($typename = '') {
 	$a = get_app();
-	
+
 	$timestamp = time();
 	$sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $timestamp . $typename);
-	
+
 	return $timestamp . '.' . $sec_hash;
 }
 
 function check_form_security_token($typename = '', $formname = 'form_security_token') {
 	if (!x($_REQUEST, $formname)) return false;
 	$hash = $_REQUEST[$formname];
-	
+
 	$max_livetime = 10800; // 3 hours
-	
+
 	$a = get_app();
-	
+
 	$x = explode('.', $hash);
 	if (time() > (IntVal($x[0]) + $max_livetime)) return false;
-	
+
 	$sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $x[0] . $typename);
-	
+
 	return ($sec_hash == $x[1]);
 }
 
@@ -395,13 +395,13 @@ function check_form_security_token_ForbiddenOnErr($typename = '', $formname = 'f
 
 // Returns an array of group id's this contact is a member of.
 // This array will only contain group id's related to the uid of this
-// DFRN contact. They are *not* neccessarily unique across the entire site. 
+// DFRN contact. They are *not* neccessarily unique across the entire site.
 
 
 if(! function_exists('init_groups_visitor')) {
 function init_groups_visitor($contact_id) {
 	$groups = array();
-	$r = q("SELECT `gid` FROM `group_member` 
+	$r = q("SELECT `gid` FROM `group_member`
 		WHERE `contact-id` = %d ",
 		intval($contact_id)
 	);
diff --git a/include/text.php b/include/text.php
index 6672b0d32..77a9f25af 100644
--- a/include/text.php
+++ b/include/text.php
@@ -276,7 +276,7 @@ if(! function_exists('paginate_data')) {
  * @param int $count [optional] item count (used with alt pager)
  * @return Array data for pagination template
  */
-function paginate_data(&$a, $count=null) {
+function paginate_data(App $a, $count=null) {
 	$stripped = preg_replace('/([&?]page=[0-9]*)/','',$a->query_string);
 
 	$stripped = str_replace('q=','',$stripped);
@@ -369,7 +369,7 @@ if(! function_exists('paginate')) {
  * @param App $a App instance
  * @return string html for pagination #FIXME remove html
  */
-function paginate(App &$a) {
+function paginate(App $a) {
 
 	$data = paginate_data($a);
 	$tpl = get_markup_template("paginate.tpl");
@@ -384,7 +384,7 @@ if(! function_exists('alt_pager')) {
  * @param int $i
  * @return string html for pagination #FIXME remove html
  */
-function alt_pager(&$a, $i) {
+function alt_pager(App $a, $i) {
 
 	$data = paginate_data($a, $i);
 	$tpl = get_markup_template("paginate.tpl");
diff --git a/include/uimport.php b/include/uimport.php
index 0d9ffc35f..b774d78c6 100644
--- a/include/uimport.php
+++ b/include/uimport.php
@@ -78,7 +78,7 @@ function import_cleanup($newuid) {
 	q("DELETE FROM `pconfig` WHERE uid = %d", $newuid);
 }
 
-function import_account(&$a, $file) {
+function import_account(App $a, $file) {
 	logger("Start user import from " . $file['tmp_name']);
 	/*
 	  STEPS
diff --git a/mod/_well_known.php b/mod/_well_known.php
index eedddf1e5..75948a008 100644
--- a/mod/_well_known.php
+++ b/mod/_well_known.php
@@ -3,7 +3,7 @@
 require_once("mod/hostxrd.php");
 require_once("mod/nodeinfo.php");
 
-function _well_known_init(App &$a){
+function _well_known_init(App $a) {
 	if ($a->argc > 1) {
 		switch($a->argv[1]) {
 			case "host-meta":
@@ -21,7 +21,7 @@ function _well_known_init(App &$a){
 	killme();
 }
 
-function wk_social_relay(App &$a) {
+function wk_social_relay(App $a) {
 
 	define('SR_SCOPE_ALL', 'all');
 	define('SR_SCOPE_TAGS', 'tags');
diff --git a/mod/acctlink.php b/mod/acctlink.php
index 29f17d6e4..892b59655 100644
--- a/mod/acctlink.php
+++ b/mod/acctlink.php
@@ -2,7 +2,7 @@
 
 require_once('include/Scrape.php');
 
-function acctlink_init(App &$a) {
+function acctlink_init(App $a) {
 
 	if(x($_GET,'addr')) {
 		$addr = trim($_GET['addr']);
diff --git a/mod/acl.php b/mod/acl.php
index 802b0a399..04aa9f50a 100644
--- a/mod/acl.php
+++ b/mod/acl.php
@@ -3,7 +3,7 @@
 
 require_once("include/acl_selectors.php");
 
-function acl_init(App &$a){
+function acl_init(App $a) {
 	acl_lookup($a);
 }
 
diff --git a/mod/admin.php b/mod/admin.php
index fd57f92d5..b1bc96fd4 100644
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -2,7 +2,7 @@
 
  /**
  * @file mod/admin.php
- * 
+ *
  * @brief Friendica admin
  */
 
@@ -23,7 +23,7 @@ require_once("include/text.php");
  * @param App $a
  *
  */
-function admin_post(App &$a){
+function admin_post(App $a) {
 
 
 	if(!is_site_admin()) {
@@ -66,7 +66,7 @@ function admin_post(App &$a){
 
 				$theme = $a->argv[2];
 				if(is_file("view/theme/$theme/config.php")){
-					function __call_theme_admin_post(&$a, $theme) {
+					function __call_theme_admin_post(App $a, $theme) {
 						$orig_theme = $a->theme;
 						$orig_page = $a->page;
 						$orig_session_theme = $_SESSION['theme'];
@@ -127,7 +127,7 @@ function admin_post(App &$a){
  * @param App $a
  * @return string
  */
-function admin_content(App &$a) {
+function admin_content(App $a) {
 
 	if(!is_site_admin()) {
 		return login(false);
@@ -260,7 +260,7 @@ function admin_content(App &$a) {
  * @param App $a
  * @return string
  */
-function admin_page_federation(App &$a) {
+function admin_page_federation(App $a) {
 	// get counts on active friendica, diaspora, redmatrix, hubzilla, gnu
 	// social and statusnet nodes this node is knowing
 	//
@@ -316,12 +316,12 @@ function admin_page_federation(App &$a) {
 				$newVC = $vv['total'];
 				$newVV = $vv['version'];
 				$posDash = strpos($newVV, '-');
-				if($posDash) 
+				if($posDash)
 					$newVV = substr($newVV, 0, $posDash);
 				if(isset($newV[$newVV]))
-					$newV[$newVV] += $newVC; 
+					$newV[$newVV] += $newVC;
 				else
-					$newV[$newVV] = $newVC; 
+					$newV[$newVV] = $newVC;
 			}
 			foreach ($newV as $key => $value) {
 				array_push($newVv, array('total'=>$value, 'version'=>$key));
@@ -393,7 +393,7 @@ function admin_page_federation(App &$a) {
  * @param App $a
  * @return string
  */
-function admin_page_queue(App &$a) {
+function admin_page_queue(App $a) {
 	// get content from the queue table
 	$r = q("SELECT `c`.`name`, `c`.`nurl`, `q`.`id`, `q`.`network`, `q`.`created`, `q`.`last`
 			FROM `queue` AS `q`, `contact` AS `c`
@@ -427,7 +427,7 @@ function admin_page_queue(App &$a) {
  * @param App $a
  * @return string
  */
-function admin_page_summary(App &$a) {
+function admin_page_summary(App $a) {
 	global $db;
 	// are there MyISAM tables in the DB? If so, trigger a warning message
 	$r = q("SELECT `engine` FROM `information_schema`.`tables` WHERE `engine` = 'myisam' AND `table_schema` = '%s' LIMIT 1",
@@ -501,10 +501,10 @@ function admin_page_summary(App &$a) {
 
 /**
  * @brief Process send data from Admin Site Page
- * 
+ *
  * @param App $a
  */
-function admin_page_site_post(App &$a) {
+function admin_page_site_post(App $a) {
 	if(!x($_POST,"page_site")) {
 		return;
 	}
@@ -845,7 +845,7 @@ function admin_page_site_post(App &$a) {
  * @param  App $a
  * @return string
  */
-function admin_page_site(App &$a) {
+function admin_page_site(App $a) {
 
 	/* Installed langs */
 	$lang_choices = get_available_languages();
@@ -1072,7 +1072,7 @@ function admin_page_site(App &$a) {
  * @param App $a
  * @return string
  **/
-function admin_page_dbsync(App &$a) {
+function admin_page_dbsync(App $a) {
 
 	$o = '';
 
@@ -1152,10 +1152,10 @@ function admin_page_dbsync(App &$a) {
 
 /**
  * @brief Process data send by Users admin page
- * 
+ *
  * @param App $a
  */
-function admin_page_users_post(App &$a){
+function admin_page_users_post(App $a) {
 	$pending     = (x($_POST, 'pending')           ? $_POST['pending']           : array());
 	$users       = (x($_POST, 'user')              ? $_POST['user']		      : array());
 	$nu_name     = (x($_POST, 'new_user_name')     ? $_POST['new_user_name']     : '');
@@ -1168,7 +1168,7 @@ function admin_page_users_post(App &$a){
 	if (!($nu_name==="") && !($nu_email==="") && !($nu_nickname==="")) {
 		require_once('include/user.php');
 
-		$result = create_user(array('username'=>$nu_name, 'email'=>$nu_email, 
+		$result = create_user(array('username'=>$nu_name, 'email'=>$nu_email,
 			'nickname'=>$nu_nickname, 'verified'=>1, 'language'=>$nu_language));
 		if (! $result['success']) {
 			notice($result['message']);
@@ -1260,7 +1260,7 @@ function admin_page_users_post(App &$a){
  * @param App $a
  * @return string
  */
-function admin_page_users(App &$a){
+function admin_page_users(App $a) {
 	if($a->argc>2) {
 		$uid = $a->argv[3];
 		$user = q("SELECT `username`, `blocked` FROM `user` WHERE `uid` = %d", intval($uid));
@@ -1396,7 +1396,7 @@ function admin_page_users(App &$a){
 		array(t('Name'), t('Email'), t('Register date'), t('Last login'), t('Last item'),  t('Account')),
 		$valid_orders
 	);
-	
+
 	$t = get_markup_template("admin_users.tpl");
 	$o = replace_macros($t, array(
 		// strings //
@@ -1460,7 +1460,7 @@ function admin_page_users(App &$a){
  * @param App $a
  * @return string
  */
-function admin_page_plugins(App &$a){
+function admin_page_plugins(App $a) {
 
 	/*
 	 * Single plugin
@@ -1588,7 +1588,7 @@ function admin_page_plugins(App &$a){
 		'$baseurl' => App::get_baseurl(true),
 		'$function' => 'plugins',
 		'$plugins' => $plugins,
-		'$pcount' => count($plugins), 
+		'$pcount' => count($plugins),
 		'$noplugshint' => sprintf(t('There are currently no plugins available on your node. You can find the official plugin repository at %1$s and might find other interesting plugins in the open plugin registry at %2$s'), 'https://github.com/friendica/friendica-addons', 'http://addons.friendi.ca'),
 		'$form_security_token' => get_form_security_token("admin_themes"),
 	));
@@ -1669,7 +1669,7 @@ function rebuild_theme_table($themes) {
  * @param App $a
  * @return string
  */
-function admin_page_themes(App &$a){
+function admin_page_themes(App $a) {
 
 	$allowed_themes_str = get_config('system','allowed_themes');
 	$allowed_themes_raw = explode(',',$allowed_themes_str);
@@ -1749,7 +1749,7 @@ function admin_page_themes(App &$a){
 
 		$admin_form="";
 		if(is_file("view/theme/$theme/config.php")) {
-			function __get_theme_admin_form(&$a, $theme) {
+			function __get_theme_admin_form(App $a, $theme) {
 				$orig_theme = $a->theme;
 				$orig_page = $a->page;
 				$orig_session_theme = $_SESSION['theme'];
@@ -1847,10 +1847,10 @@ function admin_page_themes(App &$a){
 
 /**
  * @brief Prosesses data send by Logs admin page
- * 
+ *
  * @param App $a
  */
-function admin_page_logs_post(App &$a) {
+function admin_page_logs_post(App $a) {
 	if (x($_POST,"page_logs")) {
 		check_form_security_token_redirectOnErr('/admin/logs', 'admin_logs');
 
@@ -1884,7 +1884,7 @@ function admin_page_logs_post(App &$a) {
  * @param App $a
  * @return string
  */
-function admin_page_logs(App &$a){
+function admin_page_logs(App $a) {
 
 	$log_choices = array(
 		LOGGER_NORMAL	=> 'Normal',
@@ -1893,7 +1893,7 @@ function admin_page_logs(App &$a){
 		LOGGER_DATA	=> 'Data',
 		LOGGER_ALL	=> 'All'
 	);
-	
+
 	if (ini_get('log_errors')) {
 		$phplogenabled = t('PHP log currently enabled.');
 	} else {
@@ -1941,7 +1941,7 @@ function admin_page_logs(App &$a){
  * @param App $a
  * @return string
  */
-function admin_page_viewlogs(App &$a){
+function admin_page_viewlogs(App $a) {
 	$t = get_markup_template("admin_viewlogs.tpl");
 	$f = get_config('system','logfile');
 	$data = '';
@@ -1980,10 +1980,10 @@ function admin_page_viewlogs(App &$a){
 
 /**
  * @brief Prosesses data send by the features admin page
- * 
+ *
  * @param App $a
  */
-function admin_page_features_post(App &$a) {
+function admin_page_features_post(App $a) {
 
 	check_form_security_token_redirectOnErr('/admin/features', 'admin_manage_features');
 
@@ -2017,20 +2017,20 @@ function admin_page_features_post(App &$a) {
 
 /**
  * @brief Subpage for global additional feature management
- * 
+ *
  * This functin generates the subpage 'Manage Additional Features'
  * for the admin panel. At this page the admin can set preferences
- * for the user settings of the 'additional features'. If needed this 
+ * for the user settings of the 'additional features'. If needed this
  * preferences can be locked through the admin.
- * 
+ *
  * The returned string contains the HTML code of the subpage 'Manage
  * Additional Features'
- * 
+ *
  * @param App $a
  * @return string
  */
-function admin_page_features(App &$a) {
-	
+function admin_page_features(App $a) {
+
 	if((argc() > 1) && (argv(1) === 'features')) {
 		$arr = array();
 		$features = get_features(false);
@@ -2049,7 +2049,7 @@ function admin_page_features(App &$a) {
 				);
 			}
 		}
-		
+
 		$tpl = get_markup_template("admin_settings_features.tpl");
 		$o .= replace_macros($tpl, array(
 			'$form_security_token' => get_form_security_token("admin_manage_features"),
diff --git a/mod/allfriends.php b/mod/allfriends.php
index 7a134a7be..f51070bbe 100644
--- a/mod/allfriends.php
+++ b/mod/allfriends.php
@@ -5,7 +5,7 @@ require_once('include/Contact.php');
 require_once('include/contact_selectors.php');
 require_once('mod/contacts.php');
 
-function allfriends_content(App &$a) {
+function allfriends_content(App $a) {
 
 	$o = '';
 	if (! local_user()) {
diff --git a/mod/amcd.php b/mod/amcd.php
index 3fcdb42c8..5f9f97e3f 100644
--- a/mod/amcd.php
+++ b/mod/amcd.php
@@ -1,6 +1,6 @@
 <?php
 
-function amcd_content(App &$a) {
+function amcd_content(App $a) {
 //header("Content-type: text/json");
 echo <<< EOT
 {
diff --git a/mod/api.php b/mod/api.php
index 74a0cff6f..3916636cf 100644
--- a/mod/api.php
+++ b/mod/api.php
@@ -20,7 +20,7 @@ function oauth_get_client($request){
 	return $r[0];
 }
 
-function api_post(App &$a) {
+function api_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -34,7 +34,7 @@ function api_post(App &$a) {
 
 }
 
-function api_content(App &$a) {
+function api_content(App $a) {
 	if ($a->cmd=='api/oauth/authorize'){
 		/*
 		 * api/oauth/authorize interact with the user. return a standard page
diff --git a/mod/apps.php b/mod/apps.php
index 4d6395e4e..199ce0f91 100644
--- a/mod/apps.php
+++ b/mod/apps.php
@@ -1,6 +1,6 @@
 <?php
 
-function apps_content(App &$a) {
+function apps_content(App $a) {
     $privateaddons = get_config('config','private_addons');
       if ($privateaddons === "1") {
 	if((! (local_user())))  {
@@ -20,6 +20,6 @@ function apps_content(App &$a) {
 		'$apps' => $a->apps,
 	));
 
-	
+
 
 }
diff --git a/mod/attach.php b/mod/attach.php
index 3b1fc0ec8..dd7154dfe 100644
--- a/mod/attach.php
+++ b/mod/attach.php
@@ -2,7 +2,7 @@
 
 require_once('include/security.php');
 
-function attach_init(App &$a) {
+function attach_init(App $a) {
 
 	if($a->argc != 2) {
 		notice( t('Item not available.') . EOL);
diff --git a/mod/babel.php b/mod/babel.php
index 5129f5bf5..e8ea11c94 100644
--- a/mod/babel.php
+++ b/mod/babel.php
@@ -9,55 +9,55 @@ function visible_lf($s) {
 	return str_replace("\n",'<br />', $s);
 }
 
-function babel_content(App &$a) {
+function babel_content(App $a) {
 
 	$o .= '<h1>Babel Diagnostic</h1>';
 
 	$o .= '<form action="babel" method="post">';
 	$o .= t('Source (bbcode) text:') . EOL . '<textarea name="text" >' . htmlspecialchars($_REQUEST['text']) .'</textarea>' . EOL;
-	$o .= '<input type="submit" name="submit" value="Submit" /></form>'; 
+	$o .= '<input type="submit" name="submit" value="Submit" /></form>';
 
 	$o .= '<br /><br />';
 
 	$o .= '<form action="babel" method="post">';
 	$o .= t('Source (Diaspora) text to convert to BBcode:') . EOL . '<textarea name="d2bbtext" >' . htmlspecialchars($_REQUEST['d2bbtext']) .'</textarea>' . EOL;
-	$o .= '<input type="submit" name="submit" value="Submit" /></form>'; 
+	$o .= '<input type="submit" name="submit" value="Submit" /></form>';
 
 	$o .= '<br /><br />';
 
 	if(x($_REQUEST,'text')) {
 
 		$text = trim($_REQUEST['text']);
-		$o .= "<h2>" . t("Source input: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($text) . EOL. EOL; 
+		$o .= "<h2>" . t("Source input: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($text) . EOL. EOL;
 
 		$html = bbcode($text);
-		$o .= "<h2>" . t("bb2html (raw HTML): ") . "</h2>" . EOL. EOL; 
-		$o .= htmlspecialchars($html). EOL. EOL; 
+		$o .= "<h2>" . t("bb2html (raw HTML): ") . "</h2>" . EOL. EOL;
+		$o .= htmlspecialchars($html). EOL. EOL;
 
 		//$html = bbcode($text);
-		$o .= "<h2>" . t("bb2html: ") . "</h2>" . EOL. EOL; 
-		$o .= $html. EOL. EOL; 
+		$o .= "<h2>" . t("bb2html: ") . "</h2>" . EOL. EOL;
+		$o .= $html. EOL. EOL;
 
 		$bbcode = html2bbcode($html);
-		$o .= "<h2>" . t("bb2html2bb: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($bbcode) . EOL. EOL; 
+		$o .= "<h2>" . t("bb2html2bb: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($bbcode) . EOL. EOL;
 
 		$diaspora = bb2diaspora($text);
-		$o .= "<h2>" . t("bb2md: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($diaspora) . EOL. EOL; 
+		$o .= "<h2>" . t("bb2md: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($diaspora) . EOL. EOL;
 
 		$html = Markdown($diaspora);
-		$o .= "<h2>" . t("bb2md2html: ") . "</h2>" . EOL. EOL; 
-		$o .= $html. EOL. EOL; 
+		$o .= "<h2>" . t("bb2md2html: ") . "</h2>" . EOL. EOL;
+		$o .= $html. EOL. EOL;
 
 		$bbcode = diaspora2bb($diaspora);
-		$o .= "<h2>" . t("bb2dia2bb: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($bbcode) . EOL. EOL; 
+		$o .= "<h2>" . t("bb2dia2bb: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($bbcode) . EOL. EOL;
 
 		$bbcode = html2bbcode($html);
-		$o .= "<h2>" . t("bb2md2html2bb: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($bbcode) . EOL. EOL; 
+		$o .= "<h2>" . t("bb2md2html2bb: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($bbcode) . EOL. EOL;
 
 
 
@@ -66,13 +66,13 @@ function babel_content(App &$a) {
 	if(x($_REQUEST,'d2bbtext')) {
 
 		$d2bbtext = trim($_REQUEST['d2bbtext']);
-		$o .= "<h2>" . t("Source input (Diaspora format): ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($d2bbtext) . EOL. EOL; 
+		$o .= "<h2>" . t("Source input (Diaspora format): ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($d2bbtext) . EOL. EOL;
 
 
 		$bb = diaspora2bb($d2bbtext);
-		$o .= "<h2>" . t("diaspora2bb: ") . "</h2>" . EOL. EOL; 
-		$o .= visible_lf($bb) . EOL. EOL; 
+		$o .= "<h2>" . t("diaspora2bb: ") . "</h2>" . EOL. EOL;
+		$o .= visible_lf($bb) . EOL. EOL;
 	}
 
 	return $o;
diff --git a/mod/bookmarklet.php b/mod/bookmarklet.php
index 9bc8c3353..c4ef84570 100644
--- a/mod/bookmarklet.php
+++ b/mod/bookmarklet.php
@@ -3,11 +3,11 @@
 require_once('include/conversation.php');
 require_once('include/items.php');
 
-function bookmarklet_init(App &$a) {
+function bookmarklet_init(App $a) {
 	$_GET["mode"] = "minimal";
 }
 
-function bookmarklet_content(App &$a) {
+function bookmarklet_content(App $a) {
 	if (!local_user()) {
 		$o = '<h2>'.t('Login').'</h2>';
 		$o .= login(($a->config['register_policy'] == REGISTER_CLOSED) ? false : true);
diff --git a/mod/cal.php b/mod/cal.php
index 7cb36e7a5..b3cd1e322 100644
--- a/mod/cal.php
+++ b/mod/cal.php
@@ -9,7 +9,7 @@
 require_once('include/event.php');
 require_once('include/redir.php');
 
-function cal_init(App &$a) {
+function cal_init(App $a) {
 	if($a->argc > 1)
 		auto_redir($a, $a->argv[1]);
 
@@ -64,7 +64,7 @@ function cal_init(App &$a) {
 	return;
 }
 
-function cal_content(App &$a) {
+function cal_content(App $a) {
 	nav_set_selected('events');
 
 	$editselect = 'none';
diff --git a/mod/cb.php b/mod/cb.php
index 90e41fb6d..3c5df6e38 100644
--- a/mod/cb.php
+++ b/mod/cb.php
@@ -5,19 +5,19 @@
  */
 
 
-function cb_init(App &$a) {
+function cb_init(App $a) {
 	call_hooks('cb_init');
 }
 
-function cb_post(App &$a) {
+function cb_post(App $a) {
 	call_hooks('cb_post', $_POST);
 }
 
-function cb_afterpost(App &$a) {
+function cb_afterpost(App $a) {
 	call_hooks('cb_afterpost');
 }
 
-function cb_content(App &$a) {
+function cb_content(App $a) {
 	$o = '';
 	call_hooks('cb_content', $o);
 	return $o;
diff --git a/mod/common.php b/mod/common.php
index 26ef7e48b..5a40663f9 100644
--- a/mod/common.php
+++ b/mod/common.php
@@ -5,7 +5,7 @@ require_once('include/Contact.php');
 require_once('include/contact_selectors.php');
 require_once('mod/contacts.php');
 
-function common_content(App &$a) {
+function common_content(App $a) {
 
 	$o = '';
 
diff --git a/mod/community.php b/mod/community.php
index 829797c57..7c92ff462 100644
--- a/mod/community.php
+++ b/mod/community.php
@@ -1,6 +1,6 @@
 <?php
 
-function community_init(App &$a) {
+function community_init(App $a) {
 	if (! local_user()) {
 		unset($_SESSION['theme']);
 		unset($_SESSION['mobile-theme']);
@@ -10,7 +10,7 @@ function community_init(App &$a) {
 }
 
 
-function community_content(&$a, $update = 0) {
+function community_content(App $a, $update = 0) {
 
 	$o = '';
 
diff --git a/mod/contactgroup.php b/mod/contactgroup.php
index 553c7d6cd..5c4cd7986 100644
--- a/mod/contactgroup.php
+++ b/mod/contactgroup.php
@@ -2,7 +2,7 @@
 
 require_once('include/group.php');
 
-function contactgroup_content(App &$a) {
+function contactgroup_content(App $a) {
 
 
 	if (! local_user()) {
diff --git a/mod/contacts.php b/mod/contacts.php
index 38e099225..7882fac1d 100644
--- a/mod/contacts.php
+++ b/mod/contacts.php
@@ -7,7 +7,7 @@ require_once('include/Scrape.php');
 require_once('mod/proxy.php');
 require_once('include/Photo.php');
 
-function contacts_init(App &$a) {
+function contacts_init(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -97,7 +97,7 @@ function contacts_init(App &$a) {
 
 }
 
-function contacts_batch_actions(App &$a){
+function contacts_batch_actions(App $a) {
 	$contacts_id = $_POST['contact_batch'];
 	if (!is_array($contacts_id)) return;
 
@@ -144,7 +144,7 @@ function contacts_batch_actions(App &$a){
 }
 
 
-function contacts_post(App &$a) {
+function contacts_post(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -349,7 +349,7 @@ function _contact_drop($contact_id, $orig_record) {
 }
 
 
-function contacts_content(App &$a) {
+function contacts_content(App $a) {
 
 	$sort_type = 0;
 	$o = '';
@@ -831,13 +831,13 @@ function contacts_content(App &$a) {
 
 /**
  * @brief List of pages for the Contact TabBar
- * 
+ *
  * Available Pages are 'Status', 'Profile', 'Contacts' and 'Common Friends'
- * 
+ *
  * @param app $a
  * @param int $contact_id The ID of the contact
  * @param int $active_tab 1 if tab should be marked as active
- * 
+ *
  * @return array with with contact TabBar data
  */
 function contacts_tab($a, $contact_id, $active_tab) {
@@ -961,9 +961,9 @@ function _contact_detail_for_template($rr){
 
 /**
  * @brief Gives a array with actions which can performed to a given contact
- * 
+ *
  * This includes actions like e.g. 'block', 'hide', 'archive', 'delete' and others
- * 
+ *
  * @param array $contact Data about the Contact
  * @return array with contact related actions
  */
@@ -1019,7 +1019,7 @@ function contact_actions($contact) {
 
 	$contact_actions['delete'] = array(
 						'label'	=> t('Delete'),
-						'url'	=> 'contacts/' . $contact['id'] . '/drop', 
+						'url'	=> 'contacts/' . $contact['id'] . '/drop',
 						'title'	=> t('Delete contact'),
 						'sel'	=> '',
 						'id'	=> 'delete',
diff --git a/mod/content.php b/mod/content.php
index 2377032a7..43f3fc2ba 100644
--- a/mod/content.php
+++ b/mod/content.php
@@ -16,7 +16,7 @@
 // and 10-20 milliseconds to fetch all the child items.
 
 
-function content_content(&$a, $update = 0) {
+function content_content(App $a, $update = 0) {
 
 	require_once('include/conversation.php');
 
@@ -61,7 +61,7 @@ function content_content(&$a, $update = 0) {
 
 	$o = '';
 
-	
+
 
 	$contact_id = $a->cid;
 
@@ -100,7 +100,7 @@ function content_content(&$a, $update = 0) {
 			$def_acl = array('allow_cid' => $str);
 	}
 
-	
+
 	$sql_options  = (($star) ? " and starred = 1 " : '');
 	$sql_options .= (($bmark) ? " and bookmark = 1 " : '');
 
@@ -137,7 +137,7 @@ function content_content(&$a, $update = 0) {
 	}
 	elseif($cid) {
 
-		$r = q("SELECT `id`,`name`,`network`,`writable`,`nurl` FROM `contact` WHERE `id` = %d 
+		$r = q("SELECT `id`,`name`,`network`,`writable`,`nurl` FROM `contact` WHERE `id` = %d
 				AND `blocked` = 0 AND `pending` = 0 LIMIT 1",
 			intval($cid)
 		);
@@ -307,7 +307,7 @@ function content_content(&$a, $update = 0) {
 
 
 
-function render_content(&$a, $items, $mode, $update, $preview = false) {
+function render_content(App $a, $items, $mode, $update, $preview = false) {
 
 	require_once('include/bbcode.php');
 	require_once('mod/proxy.php');
@@ -382,7 +382,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 
 		if($mode === 'network-new' || $mode === 'search' || $mode === 'community') {
 
-			// "New Item View" on network page or search page results 
+			// "New Item View" on network page or search page results
 			// - just loop through the items and format them minimally for display
 
 			//$tpl = get_markup_template('search_item.tpl');
@@ -402,7 +402,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 						|| (activity_match($item['verb'],ACTIVITY_DISLIKE))
 						|| activity_match($item['verb'],ACTIVITY_ATTEND)
 						|| activity_match($item['verb'],ACTIVITY_ATTENDNO)
-						|| activity_match($item['verb'],ACTIVITY_ATTENDMAYBE)) 
+						|| activity_match($item['verb'],ACTIVITY_ATTENDMAYBE))
 						&& ($item['id'] != $item['parent']))
 						continue;
 					$nickname = $item['nickname'];
@@ -450,7 +450,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 
 				$drop = array(
 					'dropping' => $dropping,
-					'select' => t('Select'), 
+					'select' => t('Select'),
 					'delete' => t('Delete'),
 				);
 
@@ -540,11 +540,11 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 						$comments[$item['parent']] = 1;
 					else
 						$comments[$item['parent']] += 1;
-				} elseif(! x($comments,$item['parent'])) 
+				} elseif(! x($comments,$item['parent']))
 					$comments[$item['parent']] = 0; // avoid notices later on
 			}
 
-			// map all the like/dislike/attendance activities for each parent item 
+			// map all the like/dislike/attendance activities for each parent item
 			// Store these in the $alike and $dlike arrays
 
 			foreach($items as $item) {
@@ -633,14 +633,14 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 
 				$redirect_url = 'redir/' . $item['cid'] ;
 
-				$lock = ((($item['private'] == 1) || (($item['uid'] == local_user()) && (strlen($item['allow_cid']) || strlen($item['allow_gid']) 
+				$lock = ((($item['private'] == 1) || (($item['uid'] == local_user()) && (strlen($item['allow_cid']) || strlen($item['allow_gid'])
 					|| strlen($item['deny_cid']) || strlen($item['deny_gid']))))
 					? t('Private Message')
 					: false);
 
 
 				// Top-level wall post not written by the wall owner (wall-to-wall)
-				// First figure out who owns it. 
+				// First figure out who owns it.
 
 				$osparkle = '';
 
@@ -667,13 +667,13 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 						if((! $owner_linkmatch) && (! $alias_linkmatch) && (! $owner_namematch)) {
 
 							// The author url doesn't match the owner (typically the contact)
-							// and also doesn't match the contact alias. 
-							// The name match is a hack to catch several weird cases where URLs are 
+							// and also doesn't match the contact alias.
+							// The name match is a hack to catch several weird cases where URLs are
 							// all over the park. It can be tricked, but this prevents you from
 							// seeing "Bob Smith to Bob Smith via Wall-to-wall" and you know darn
-							// well that it's the same Bob Smith. 
+							// well that it's the same Bob Smith.
 
-							// But it could be somebody else with the same name. It just isn't highly likely. 
+							// But it could be somebody else with the same name. It just isn't highly likely.
 
 
 							$owner_url = $item['owner-link'];
@@ -682,7 +682,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 							$template = $wallwall;
 							$commentww = 'ww';
 							// If it is our contact, use a friendly redirect link
-							if((link_compare($item['owner-link'],$item['url'])) 
+							if((link_compare($item['owner-link'],$item['url']))
 								&& ($item['network'] === NETWORK_DFRN)) {
 								$owner_url = $redirect_url;
 								$osparkle = ' sparkle';
@@ -694,7 +694,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 				}
 
 				$likebuttons = '';
-				$shareable = ((($profile_owner == local_user()) && ($item['private'] != 1)) ? true : false); 
+				$shareable = ((($profile_owner == local_user()) && ($item['private'] != 1)) ? true : false);
 
 				if($page_writeable) {
 /*					if($toplevelpost) {  */
@@ -714,7 +714,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 
 					if(($show_comment_box) || (($show_comment_box == false) && ($override_comment_box == false) && ($item['last-child']))) {
 						$comment = replace_macros($cmnt_tpl,array(
-							'$return_path' => '', 
+							'$return_path' => '',
 							'$jsreload' => (($mode === 'display') ? $_SESSION['return_url'] : ''),
 							'$type' => (($mode === 'profile') ? 'wall-comment' : 'net-comment'),
 							'$id' => $item['item_id'],
@@ -756,7 +756,7 @@ function render_content(&$a, $items, $mode, $update, $preview = false) {
 
 				$drop = array(
 					'dropping' => $dropping,
-					'select' => t('Select'), 
+					'select' => t('Select'),
 					'delete' => t('Delete'),
 				);
 
diff --git a/mod/credits.php b/mod/credits.php
index 84e32b83d..f5c34b610 100644
--- a/mod/credits.php
+++ b/mod/credits.php
@@ -5,7 +5,7 @@
  * addons repository will be listed though ATM)
  */
 
-function credits_content (App &$a) {
+function credits_content (App $a) {
     /* fill the page with credits */
     $f = fopen('util/credits.txt','r');
     $names = fread($f, filesize('util/credits.txt'));
diff --git a/mod/crepair.php b/mod/crepair.php
index c141958e8..902a12930 100644
--- a/mod/crepair.php
+++ b/mod/crepair.php
@@ -2,7 +2,7 @@
 require_once("include/contact_selectors.php");
 require_once("mod/contacts.php");
 
-function crepair_init(App &$a) {
+function crepair_init(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -30,7 +30,7 @@ function crepair_init(App &$a) {
 	}
 }
 
-function crepair_post(App &$a) {
+function crepair_post(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -96,7 +96,7 @@ function crepair_post(App &$a) {
 
 
 
-function crepair_content(App &$a) {
+function crepair_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/delegate.php b/mod/delegate.php
index 6930a5943..4212ec9b1 100644
--- a/mod/delegate.php
+++ b/mod/delegate.php
@@ -1,12 +1,12 @@
 <?php
 require_once('mod/settings.php');
 
-function delegate_init(App &$a) {
+function delegate_init(App $a) {
 	return settings_init($a);
 }
 
 
-function delegate_content(App &$a) {
+function delegate_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -90,12 +90,12 @@ function delegate_content(App &$a) {
 
 	// find every contact who might be a candidate for delegation
 
-	$r = q("select nurl from contact where substring_index(contact.nurl,'/',3) = '%s' 
+	$r = q("select nurl from contact where substring_index(contact.nurl,'/',3) = '%s'
 		and contact.uid = %d and contact.self = 0 and network = '%s' ",
 		dbesc(normalise_link(App::get_baseurl())),
 		intval(local_user()),
 		dbesc(NETWORK_DFRN)
-	); 
+	);
 
 	if (! dbm::is_result($r)) {
 		notice( t('No potential page delegates located.') . EOL);
diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php
index dc54b912d..57ddc58f2 100644
--- a/mod/dfrn_confirm.php
+++ b/mod/dfrn_confirm.php
@@ -22,7 +22,7 @@ require_once('include/enotify.php');
 require_once('include/group.php');
 require_once('include/Probe.php');
 
-function dfrn_confirm_post(&$a,$handsfree = null) {
+function dfrn_confirm_post(App $a, $handsfree = null) {
 
 	if(is_array($handsfree)) {
 
diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
index eebaa076d..d34c959f1 100644
--- a/mod/dfrn_notify.php
+++ b/mod/dfrn_notify.php
@@ -11,7 +11,7 @@ require_once('include/event.php');
 
 require_once('library/defuse/php-encryption-1.2.1/Crypto.php');
 
-function dfrn_notify_post(App &$a) {
+function dfrn_notify_post(App $a) {
 	logger(__function__, LOGGER_TRACE);
 	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? notags(trim($_POST['dfrn_id']))   : '');
 	$dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version']    : 2.0);
@@ -221,7 +221,7 @@ function dfrn_notify_post(App &$a) {
 }
 
 
-function dfrn_notify_content(App &$a) {
+function dfrn_notify_content(App $a) {
 
 	if(x($_GET,'dfrn_id')) {
 
diff --git a/mod/dfrn_poll.php b/mod/dfrn_poll.php
index a31a50ad2..506f9f162 100644
--- a/mod/dfrn_poll.php
+++ b/mod/dfrn_poll.php
@@ -4,7 +4,7 @@ require_once('include/auth.php');
 require_once('include/dfrn.php');
 
 
-function dfrn_poll_init(App &$a) {
+function dfrn_poll_init(App $a) {
 
 
 	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
@@ -163,7 +163,7 @@ function dfrn_poll_init(App &$a) {
 
 			if($final_dfrn_id != $orig_id) {
 				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
-				// did not decode properly - cannot trust this site 
+				// did not decode properly - cannot trust this site
 				xml_status(3, 'Bad decryption');
 			}
 
@@ -203,7 +203,7 @@ function dfrn_poll_init(App &$a) {
 
 
 
-function dfrn_poll_post(App &$a) {
+function dfrn_poll_post(App $a) {
 
 	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? $_POST['dfrn_id']              : '');
 	$challenge    = ((x($_POST,'challenge'))    ? $_POST['challenge']            : '');
@@ -260,7 +260,7 @@ function dfrn_poll_post(App &$a) {
 
 			if($final_dfrn_id != $orig_id) {
 				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
-				// did not decode properly - cannot trust this site 
+				// did not decode properly - cannot trust this site
 				xml_status(3, 'Bad decryption');
 			}
 
@@ -383,7 +383,7 @@ function dfrn_poll_post(App &$a) {
 	}
 }
 
-function dfrn_poll_content(App &$a) {
+function dfrn_poll_content(App $a) {
 
 	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
 	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : 'data');
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
index 353f8fdc9..9e5f022d1 100644
--- a/mod/dfrn_request.php
+++ b/mod/dfrn_request.php
@@ -17,7 +17,7 @@ require_once('include/Scrape.php');
 require_once('include/Probe.php');
 require_once('include/group.php');
 
-function dfrn_request_init(App &$a) {
+function dfrn_request_init(App $a) {
 
 	if($a->argc > 1)
 		$which = $a->argv[1];
@@ -42,7 +42,7 @@ function dfrn_request_init(App &$a) {
  * After logging in, we click 'submit' to approve the linkage.
  *
  */
-function dfrn_request_post(App &$a) {
+function dfrn_request_post(App $a) {
 
 	if(($a->argc != 2) || (! count($a->profile))) {
 		logger('Wrong count of argc or profiles: argc=' . $a->argc . ',profile()=' . count($a->profile));
@@ -658,7 +658,7 @@ function dfrn_request_post(App &$a) {
 }
 
 
-function dfrn_request_content(App &$a) {
+function dfrn_request_content(App $a) {
 
 	if (($a->argc != 2) || (! count($a->profile))) {
 		return "";
diff --git a/mod/directory.php b/mod/directory.php
index f3fbb9eb7..ba48bb392 100644
--- a/mod/directory.php
+++ b/mod/directory.php
@@ -1,6 +1,6 @@
 <?php
 
-function directory_init(App &$a) {
+function directory_init(App $a) {
 	$a->set_pager_itemspage(60);
 
 	if(local_user()) {
@@ -20,19 +20,19 @@ function directory_init(App &$a) {
 }
 
 
-function directory_post(App &$a) {
+function directory_post(App $a) {
 	if(x($_POST,'search'))
 		$a->data['search'] = $_POST['search'];
 }
 
 
 
-function directory_content(App &$a) {
+function directory_content(App $a) {
 	global $db;
 
 	require_once("mod/proxy.php");
 
-	if((get_config('system','block_public')) && (! local_user()) && (! remote_user()) || 
+	if((get_config('system','block_public')) && (! local_user()) && (! remote_user()) ||
 		(get_config('system','block_local_dir')) && (! local_user()) && (! remote_user())) {
 		notice( t('Public access denied.') . EOL);
 		return;
@@ -124,7 +124,7 @@ function directory_content(App &$a) {
 			}
 //			if(strlen($rr['dob'])) {
 //				if(($years = age($rr['dob'],$rr['timezone'],'')) != 0)
-//					$details .= '<br />' . t('Age: ') . $years ; 
+//					$details .= '<br />' . t('Age: ') . $years ;
 //			}
 //			if(strlen($rr['gender']))
 //				$details .= '<br />' . t('Gender: ') . $rr['gender'];
diff --git a/mod/dirfind.php b/mod/dirfind.php
index 7eb830bb6..1b19ad92c 100644
--- a/mod/dirfind.php
+++ b/mod/dirfind.php
@@ -5,7 +5,7 @@ require_once('include/Contact.php');
 require_once('include/contact_selectors.php');
 require_once('mod/contacts.php');
 
-function dirfind_init(App &$a) {
+function dirfind_init(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL );
@@ -23,7 +23,7 @@ function dirfind_init(App &$a) {
 
 
 
-function dirfind_content(&$a, $prefix = "") {
+function dirfind_content(App $a, $prefix = "") {
 
 	$community = false;
 	$discover_user = false;
diff --git a/mod/display.php b/mod/display.php
index c98d936a0..115feb0ce 100644
--- a/mod/display.php
+++ b/mod/display.php
@@ -1,6 +1,6 @@
 <?php
 
-function display_init(App &$a) {
+function display_init(App $a) {
 
 	if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 		return;
@@ -194,7 +194,7 @@ function display_fetchauthor($a, $item) {
 	return($profiledata);
 }
 
-function display_content(&$a, $update = 0) {
+function display_content(App $a, $update = 0) {
 
 	if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 		notice(t('Public access denied.') . EOL);
diff --git a/mod/editpost.php b/mod/editpost.php
index a655801d7..2eb427727 100644
--- a/mod/editpost.php
+++ b/mod/editpost.php
@@ -2,7 +2,7 @@
 
 require_once('include/acl_selectors.php');
 
-function editpost_content(App &$a) {
+function editpost_content(App $a) {
 
 	$o = '';
 
diff --git a/mod/events.php b/mod/events.php
index 8281a9766..4a421df9d 100644
--- a/mod/events.php
+++ b/mod/events.php
@@ -8,7 +8,7 @@ require_once('include/datetime.php');
 require_once('include/event.php');
 require_once('include/items.php');
 
-function events_init(App &$a) {
+function events_init(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -31,7 +31,7 @@ function events_init(App &$a) {
 	return;
 }
 
-function events_post(App &$a) {
+function events_post(App $a) {
 
 	logger('post: ' . print_r($_REQUEST,true));
 
@@ -189,7 +189,7 @@ function events_post(App &$a) {
 
 
 
-function events_content(App &$a) {
+function events_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/fbrowser.php b/mod/fbrowser.php
index 9c8d2169b..09ecf032e 100644
--- a/mod/fbrowser.php
+++ b/mod/fbrowser.php
@@ -10,7 +10,7 @@ require_once('include/Photo.php');
 /**
  * @param App $a
  */
-function fbrowser_content(App &$a){
+function fbrowser_content(App $a) {
 
 	if (!local_user())
 		killme();
diff --git a/mod/fetch.php b/mod/fetch.php
index 64eac174a..3576384f0 100644
--- a/mod/fetch.php
+++ b/mod/fetch.php
@@ -6,9 +6,7 @@ require_once("include/crypto.php");
 require_once("include/diaspora.php");
 require_once("include/xml.php");
 
-/// @TODO You always make it like this: function foo(&$a)
-/// @TODO This means that the value of $a can be changed in anything, remove & and use App as type-hint
-function fetch_init(App &$a){
+function fetch_init(App $a) {
 
 	if (($a->argc != 3) OR (!in_array($a->argv[1], array("post", "status_message", "reshare")))) {
 		header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
diff --git a/mod/filer.php b/mod/filer.php
index 1b5589380..47c4aa5e4 100644
--- a/mod/filer.php
+++ b/mod/filer.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
-function filer_content(App &$a) {
+function filer_content(App $a) {
 
 	if (! local_user()) {
 		killme();
@@ -30,7 +30,7 @@ function filer_content(App &$a) {
 			'$field' => array('term', t("Save to Folder:"), '', '', $filetags, t('- select -')),
 			'$submit' => t('Save'),
 		));
-		
+
 		echo $o;
 	}
 	killme();
diff --git a/mod/filerm.php b/mod/filerm.php
index 7dbfe2947..7dd7df2f5 100644
--- a/mod/filerm.php
+++ b/mod/filerm.php
@@ -1,6 +1,6 @@
 <?php
 
-function filerm_content(App &$a) {
+function filerm_content(App $a) {
 
 	if (! local_user()) {
 		killme();
diff --git a/mod/follow.php b/mod/follow.php
index 3ba33780b..2b564c1bf 100644
--- a/mod/follow.php
+++ b/mod/follow.php
@@ -5,7 +5,7 @@ require_once('include/follow.php');
 require_once('include/Contact.php');
 require_once('include/contact_selectors.php');
 
-function follow_content(App &$a) {
+function follow_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -152,7 +152,7 @@ function follow_content(App &$a) {
 	return $o;
 }
 
-function follow_post(App &$a) {
+function follow_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/friendica.php b/mod/friendica.php
index d79c89a6b..3f242f7c5 100644
--- a/mod/friendica.php
+++ b/mod/friendica.php
@@ -1,6 +1,6 @@
 <?php
 
-function friendica_init(App &$a) {
+function friendica_init(App $a) {
 	if ($a->argv[1]=="json"){
 		$register_policy = Array('REGISTER_CLOSED', 'REGISTER_APPROVE', 'REGISTER_OPEN');
 
@@ -59,7 +59,7 @@ function friendica_init(App &$a) {
 
 
 
-function friendica_content(App &$a) {
+function friendica_content(App $a) {
 
 	$o = '';
 	$o .= '<h3>Friendica</h3>';
@@ -70,7 +70,7 @@ function friendica_content(App &$a) {
 	$o .= t('This is Friendica, version') . ' ' . FRIENDICA_VERSION . ' ';
 	$o .= t('running at web location') . ' ' . z_root() . '</p><p>';
 
-	$o .= t('Please visit <a href="http://friendica.com">Friendica.com</a> to learn more about the Friendica project.') . '</p><p>';	
+	$o .= t('Please visit <a href="http://friendica.com">Friendica.com</a> to learn more about the Friendica project.') . '</p><p>';
 
 	$o .= t('Bug reports and issues: please visit') . ' ' . '<a href="https://github.com/friendica/friendica/issues?state=open">'.t('the bugtracker at github').'</a></p><p>';
 	$o .= t('Suggestions, praise, donations, etc. - please email "Info" at Friendica - dot com') . '</p>';
@@ -102,7 +102,7 @@ function friendica_content(App &$a) {
 	else
 		$o .= '<p>' . t('No installed plugins/addons/apps') . '</p>';
 
-	call_hooks('about_hook', $o); 	
+	call_hooks('about_hook', $o);
 
 	return $o;
 
diff --git a/mod/fsuggest.php b/mod/fsuggest.php
index fcbadcc9b..b3d543971 100644
--- a/mod/fsuggest.php
+++ b/mod/fsuggest.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function fsuggest_post(App &$a) {
+function fsuggest_post(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -40,11 +40,11 @@ function fsuggest_post(App &$a) {
 				VALUES ( %d, %d, '%s','%s','%s','%s','%s','%s')",
 				intval(local_user()),
 				intval($contact_id),
-				dbesc($r[0]['name']), 
-				dbesc($r[0]['url']), 
-				dbesc($r[0]['request']), 
-				dbesc($r[0]['photo']), 
-				dbesc($hash), 
+				dbesc($r[0]['name']),
+				dbesc($r[0]['url']),
+				dbesc($r[0]['request']),
+				dbesc($r[0]['photo']),
+				dbesc($hash),
 				dbesc(datetime_convert())
 			);
 			$r = q("SELECT `id` FROM `fsuggest` WHERE `note` = '%s' AND `uid` = %d LIMIT 1",
@@ -71,7 +71,7 @@ function fsuggest_post(App &$a) {
 
 
 
-function fsuggest_content(App &$a) {
+function fsuggest_content(App $a) {
 
 	require_once('include/acl_selectors.php');
 
@@ -101,7 +101,7 @@ function fsuggest_content(App &$a) {
 
 	$o .= '<form id="fsuggest-form" action="fsuggest/' . $contact_id . '" method="post" >';
 
-	$o .= contact_selector('suggest','suggest-select', false, 
+	$o .= contact_selector('suggest','suggest-select', false,
 		array('size' => 4, 'exclude' => $contact_id, 'networks' => 'DFRN_ONLY', 'single' => true));
 
 
diff --git a/mod/group.php b/mod/group.php
index 681bc88cc..2b332e401 100644
--- a/mod/group.php
+++ b/mod/group.php
@@ -4,7 +4,7 @@ function validate_members(&$item) {
 	$item = intval($item);
 }
 
-function group_init(App &$a) {
+function group_init(App $a) {
 	if(local_user()) {
 		require_once('include/group.php');
 		$a->page['aside'] = group_side('contacts','group','extended',(($a->argc > 1) ? intval($a->argv[1]) : 0));
@@ -13,7 +13,7 @@ function group_init(App &$a) {
 
 
 
-function group_post(App &$a) {
+function group_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -69,7 +69,7 @@ function group_post(App &$a) {
 	return;
 }
 
-function group_content(App &$a) {
+function group_content(App $a) {
 	$change = false;
 
 	if (! local_user()) {
diff --git a/mod/hcard.php b/mod/hcard.php
index d53405009..07eb29151 100644
--- a/mod/hcard.php
+++ b/mod/hcard.php
@@ -1,6 +1,6 @@
 <?php
 
-function hcard_init(App &$a) {
+function hcard_init(App $a) {
 
 	$blocked = (((get_config('system','block_public')) && (! local_user()) && (! remote_user())) ? true : false);
 
diff --git a/mod/help.php b/mod/help.php
index c2693dedb..c380aa391 100644
--- a/mod/help.php
+++ b/mod/help.php
@@ -18,7 +18,7 @@ if (!function_exists('load_doc_file')) {
 
 }
 
-function help_content(App &$a) {
+function help_content(App $a) {
 
 	nav_set_selected('help');
 
diff --git a/mod/home.php b/mod/home.php
index ed66bad14..b1708d80a 100644
--- a/mod/home.php
+++ b/mod/home.php
@@ -1,7 +1,7 @@
 <?php
 
 if(! function_exists('home_init')) {
-function home_init(App &$a) {
+function home_init(App $a) {
 
 	$ret = array();
 	call_hooks('home_init',$ret);
@@ -17,7 +17,7 @@ function home_init(App &$a) {
 }}
 
 if(! function_exists('home_content')) {
-function home_content(App &$a) {
+function home_content(App $a) {
 
 	$o = '';
 
diff --git a/mod/hostxrd.php b/mod/hostxrd.php
index d41d84480..27dc349db 100644
--- a/mod/hostxrd.php
+++ b/mod/hostxrd.php
@@ -2,7 +2,7 @@
 
 require_once('include/crypto.php');
 
-function hostxrd_init(App &$a) {
+function hostxrd_init(App $a) {
 	header('Access-Control-Allow-Origin: *');
 	header("Content-type: text/xml");
 	$pubkey = get_config('system','site_pubkey');
diff --git a/mod/hovercard.php b/mod/hovercard.php
index 553d5d223..ec749db20 100644
--- a/mod/hovercard.php
+++ b/mod/hovercard.php
@@ -11,7 +11,7 @@
 require_once("include/socgraph.php");
 require_once("include/Contact.php");
 
-function hovercard_init(App &$a) {
+function hovercard_init(App $a) {
 	// Just for testing purposes
 	$_GET["mode"] = "minimal";
 }
@@ -96,10 +96,10 @@ function hovercard_content() {
 
 /**
  * @brief Get the raw content of a template file
- * 
+ *
  * @param string $template The name of the template
  * @param string $root Directory of the template
- * 
+ *
  * @return string|bool Output the raw content if existent, otherwise false
  */
 function get_template_content($template, $root = "") {
diff --git a/mod/ignored.php b/mod/ignored.php
index 99b3a3ddc..0065d51c5 100644
--- a/mod/ignored.php
+++ b/mod/ignored.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function ignored_init(App &$a) {
+function ignored_init(App $a) {
 
 	$ignored = 0;
 
diff --git a/mod/install.php b/mod/install.php
index 382fcefd7..106ba684f 100755
--- a/mod/install.php
+++ b/mod/install.php
@@ -4,7 +4,7 @@ require_once "include/Photo.php";
 $install_wizard_pass=1;
 
 
-function install_init(App &$a){
+function install_init(App $a) {
 
 	// $baseurl/install/testrwrite to test if rewite in .htaccess is working
 	if ($a->argc==2 && $a->argv[1]=="testrewrite") {
@@ -24,7 +24,7 @@ function install_init(App &$a){
 
 }
 
-function install_post(App &$a) {
+function install_post(App $a) {
 	global $install_wizard_pass, $db;
 
 	switch($install_wizard_pass) {
@@ -132,7 +132,7 @@ function get_db_errno() {
 	}
 }
 
-function install_content(App &$a) {
+function install_content(App $a) {
 
 	global $install_wizard_pass, $db;
 	$o = '';
@@ -565,7 +565,7 @@ function check_imagik(&$checks) {
 	}
 }
 
-function manual_config(App &$a) {
+function manual_config(App $a) {
 	$data = htmlentities($a->data['txt'],ENT_COMPAT,'UTF-8');
 	$o = t('The database configuration file ".htconfig.php" could not be written. Please use the enclosed text to create a configuration file in your web server root.');
 	$o .= "<textarea rows=\"24\" cols=\"80\" >$data</textarea>";
diff --git a/mod/invite.php b/mod/invite.php
index a7739fc77..f5c60e1ed 100644
--- a/mod/invite.php
+++ b/mod/invite.php
@@ -9,7 +9,7 @@
 
 require_once('include/email.php');
 
-function invite_post(App &$a) {
+function invite_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -73,8 +73,8 @@ function invite_post(App &$a) {
 			$nmessage = $message;
 		}
 
-		$res = mail($recip, email_header_encode( t('Please join us on Friendica'),'UTF-8'), 
-			$nmessage, 
+		$res = mail($recip, email_header_encode( t('Please join us on Friendica'),'UTF-8'),
+			$nmessage,
 			"From: " . $a->user['email'] . "\n"
 			. 'Content-type: text/plain; charset=UTF-8' . "\n"
 			. 'Content-transfer-encoding: 8bit' );
@@ -97,7 +97,7 @@ function invite_post(App &$a) {
 }
 
 
-function invite_content(App &$a) {
+function invite_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -136,7 +136,7 @@ function invite_content(App &$a) {
 		'$msg_text'            => t('Your message:'),
 		'$default_message'     => t('You are cordially invited to join me and other close friends on Friendica - and help us to create a better social web.') . "\r\n" . "\r\n"
 			. $linktxt
-			. "\r\n" . "\r\n" . (($invonly) ? t('You will need to supply this invitation code: $invite_code') . "\r\n" . "\r\n" : '') .t('Once you have registered, please connect with me via my profile page at:') 
+			. "\r\n" . "\r\n" . (($invonly) ? t('You will need to supply this invitation code: $invite_code') . "\r\n" . "\r\n" : '') .t('Once you have registered, please connect with me via my profile page at:')
 			. "\r\n" . "\r\n" . App::get_baseurl() . '/profile/' . $a->user['nickname']
 			. "\r\n" . "\r\n" . t('For more information about the Friendica project and why we feel it is important, please visit http://friendica.com') . "\r\n" . "\r\n"  ,
 		'$submit'              => t('Submit')
diff --git a/mod/item.php b/mod/item.php
index 1c7a970c2..c9306c523 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -27,7 +27,7 @@ require_once('include/Scrape.php');
 require_once('include/diaspora.php');
 require_once('include/Contact.php');
 
-function item_post(App &$a) {
+function item_post(App $a) {
 
 	if((! local_user()) && (! remote_user()) && (! x($_REQUEST,'commenter')))
 		return;
@@ -1066,7 +1066,7 @@ function item_post_return($baseurl, $api_source, $return_path) {
 
 
 
-function item_content(App &$a) {
+function item_content(App $a) {
 
 	if ((! local_user()) && (! remote_user())) {
 		return;
diff --git a/mod/like.php b/mod/like.php
index ff1e238ac..1f6a233f3 100755
--- a/mod/like.php
+++ b/mod/like.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 require_once('include/like.php');
 
-function like_content(App &$a) {
+function like_content(App $a) {
 	if(! local_user() && ! remote_user()) {
 		return false;
 	}
diff --git a/mod/localtime.php b/mod/localtime.php
index 00a7c5909..535308903 100644
--- a/mod/localtime.php
+++ b/mod/localtime.php
@@ -3,7 +3,7 @@
 require_once('include/datetime.php');
 
 
-function localtime_post(App &$a) {
+function localtime_post(App $a) {
 
 	$t = $_REQUEST['time'];
 	if(! $t)
@@ -16,7 +16,7 @@ function localtime_post(App &$a) {
 
 }
 
-function localtime_content(App &$a) {
+function localtime_content(App $a) {
 	$t = $_REQUEST['time'];
 	if(! $t)
 		$t = 'now';
@@ -38,7 +38,7 @@ function localtime_content(App &$a) {
 
 	$o .= '<form action ="' . App::get_baseurl() . '/localtime?f=&time=' . $t . '" method="post" >';
 
-	$o .= '<p>' . t('Please select your timezone:') . '</p>'; 
+	$o .= '<p>' . t('Please select your timezone:') . '</p>';
 
 	$o .= select_timezone(($_REQUEST['timezone']) ? $_REQUEST['timezone'] : 'America/Los_Angeles');
 
diff --git a/mod/lockview.php b/mod/lockview.php
index 746df28cd..38a308634 100644
--- a/mod/lockview.php
+++ b/mod/lockview.php
@@ -1,8 +1,8 @@
 <?php
 
 
-function lockview_content(App &$a) {
-  
+function lockview_content(App $a) {
+
 	$type = (($a->argc > 1) ? $a->argv[1] : 0);
 	if (is_numeric($type)) {
 		$item_id = intval($type);
@@ -10,13 +10,13 @@ function lockview_content(App &$a) {
 	} else {
 		$item_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
 	}
-  
+
 	if(! $item_id)
 		killme();
 
 	if (!in_array($type, array('item','photo','event')))
 		killme();
-     
+
 	$r = q("SELECT * FROM `%s` WHERE `id` = %d LIMIT 1",
 		dbesc($type),
 		intval($item_id)
@@ -34,7 +34,7 @@ function lockview_content(App &$a) {
 	}
 
 
-	if(($item['private'] == 1) && (! strlen($item['allow_cid'])) && (! strlen($item['allow_gid'])) 
+	if(($item['private'] == 1) && (! strlen($item['allow_cid'])) && (! strlen($item['allow_gid']))
 		&& (! strlen($item['deny_cid'])) && (! strlen($item['deny_gid']))) {
 
 		echo t('Remote privacy information not available.') . '<br />';
@@ -54,7 +54,7 @@ function lockview_content(App &$a) {
 			dbesc(implode(', ', $allowed_groups))
 		);
 		if (dbm::is_result($r))
-			foreach($r as $rr) 
+			foreach($r as $rr)
 				$l[] = '<b>' . $rr['name'] . '</b>';
 	}
 	if(count($allowed_users)) {
@@ -62,7 +62,7 @@ function lockview_content(App &$a) {
 			dbesc(implode(', ',$allowed_users))
 		);
 		if (dbm::is_result($r))
-			foreach($r as $rr) 
+			foreach($r as $rr)
 				$l[] = $rr['name'];
 
 	}
@@ -72,7 +72,7 @@ function lockview_content(App &$a) {
 			dbesc(implode(', ', $deny_groups))
 		);
 		if (dbm::is_result($r))
-			foreach($r as $rr) 
+			foreach($r as $rr)
 				$l[] = '<b><strike>' . $rr['name'] . '</strike></b>';
 	}
 	if(count($deny_users)) {
@@ -80,7 +80,7 @@ function lockview_content(App &$a) {
 			dbesc(implode(', ',$deny_users))
 		);
 		if (dbm::is_result($r))
-			foreach($r as $rr) 
+			foreach($r as $rr)
 				$l[] = '<strike>' . $rr['name'] . '</strike>';
 
 	}
diff --git a/mod/login.php b/mod/login.php
index db49ba20a..8fd28c723 100644
--- a/mod/login.php
+++ b/mod/login.php
@@ -1,6 +1,6 @@
 <?php
 
-function login_content(App &$a) {
+function login_content(App $a) {
 	if(x($_SESSION,'theme'))
 		unset($_SESSION['theme']);
 	if(x($_SESSION,'mobile-theme'))
diff --git a/mod/lostpass.php b/mod/lostpass.php
index f9e9400fc..455a9b1e2 100644
--- a/mod/lostpass.php
+++ b/mod/lostpass.php
@@ -4,7 +4,7 @@ require_once('include/email.php');
 require_once('include/enotify.php');
 require_once('include/text.php');
 
-function lostpass_post(App &$a) {
+function lostpass_post(App $a) {
 
 	$loginame = notags(trim($_POST['login-name']));
 	if(! $loginame)
@@ -77,7 +77,7 @@ function lostpass_post(App &$a) {
 }
 
 
-function lostpass_content(App &$a) {
+function lostpass_content(App $a) {
 
 
 	if(x($_GET,'verify')) {
diff --git a/mod/maintenance.php b/mod/maintenance.php
index ce432f930..dcdc44194 100644
--- a/mod/maintenance.php
+++ b/mod/maintenance.php
@@ -1,6 +1,6 @@
 <?php
 
-function maintenance_content(App &$a) {
+function maintenance_content(App $a) {
 	header('HTTP/1.1 503 Service Temporarily Unavailable');
 	header('Status: 503 Service Temporarily Unavailable');
 	header('Retry-After: 600');
diff --git a/mod/manage.php b/mod/manage.php
index 835a7fbcb..4beb8e46c 100644
--- a/mod/manage.php
+++ b/mod/manage.php
@@ -3,7 +3,7 @@
 require_once("include/text.php");
 
 
-function manage_post(App &$a) {
+function manage_post(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -92,7 +92,7 @@ function manage_post(App &$a) {
 
 
 
-function manage_content(App &$a) {
+function manage_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/match.php b/mod/match.php
index f7274e436..44f5141ad 100644
--- a/mod/match.php
+++ b/mod/match.php
@@ -10,10 +10,10 @@ require_once('mod/proxy.php');
  * It takes keywords from your profile and queries the directory server for
  * matching keywords from other profiles.
  *
- * @param App &$a
+ * @param App $a
  * @return void|string
  */
-function match_content(App &$a) {
+function match_content(App $a) {
 
 	$o = '';
 	if (! local_user()) {
diff --git a/mod/message.php b/mod/message.php
index 776a23bcc..5f5f9f98e 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -4,7 +4,7 @@ require_once('include/acl_selectors.php');
 require_once('include/message.php');
 require_once('include/Smilies.php');
 
-function message_init(App &$a) {
+function message_init(App $a) {
 
 	$tabs = '';
 
@@ -40,7 +40,7 @@ function message_init(App &$a) {
 
 }
 
-function message_post(App &$a) {
+function message_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -173,7 +173,7 @@ function item_redir_and_replace_images($body, $images, $cid) {
 
 
 
-function message_content(App &$a) {
+function message_content(App $a) {
 
 	$o = '';
 	nav_set_selected('messages');
diff --git a/mod/modexp.php b/mod/modexp.php
index 5fc701290..4cc952247 100644
--- a/mod/modexp.php
+++ b/mod/modexp.php
@@ -2,7 +2,7 @@
 
 require_once('library/asn1.php');
 
-function modexp_init(App &$a) {
+function modexp_init(App $a) {
 
 	if($a->argc != 2)
 		killme();
diff --git a/mod/mood.php b/mod/mood.php
index 0e603c869..e80a7f097 100644
--- a/mod/mood.php
+++ b/mod/mood.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
-function mood_init(App &$a) {
+function mood_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -60,7 +60,7 @@ function mood_init(App &$a) {
 
 	$uri = item_new_uri($a->get_hostname(),$uid);
 
-	$action = sprintf( t('%1$s is currently %2$s'), '[url=' . $poster['url'] . ']' . $poster['name'] . '[/url]' , $verbs[$verb]); 
+	$action = sprintf( t('%1$s is currently %2$s'), '[url=' . $poster['url'] . ']' . $poster['name'] . '[/url]' , $verbs[$verb]);
 
 	$arr = array();
 	$arr['guid']          = get_guid(32);
@@ -109,7 +109,7 @@ function mood_init(App &$a) {
 
 
 
-function mood_content(App &$a) {
+function mood_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/msearch.php b/mod/msearch.php
index 4b5205ac0..277242aff 100644
--- a/mod/msearch.php
+++ b/mod/msearch.php
@@ -1,6 +1,6 @@
 <?php
 
-function msearch_post(App &$a) {
+function msearch_post(App $a) {
 
 	$perpage = (($_POST['n']) ? $_POST['n'] : 80);
 	$page = (($_POST['p']) ? intval($_POST['p'] - 1) : 0);
@@ -28,8 +28,8 @@ function msearch_post(App &$a) {
 	if (dbm::is_result($r)) {
 		foreach($r as $rr)
 			$results[] = array(
-				'name' => $rr['name'], 
-				'url' => App::get_baseurl() . '/profile/' . $rr['nickname'], 
+				'name' => $rr['name'],
+				'url' => App::get_baseurl() . '/profile/' . $rr['nickname'],
 				'photo' => App::get_baseurl() . '/photo/avatar/' . $rr['uid'] . '.jpg',
 				'tags' => str_replace(array(',','  '),array(' ',' '),$rr['pub_keywords'])
 			);
diff --git a/mod/navigation.php b/mod/navigation.php
index d69c76a84..be1b522e9 100644
--- a/mod/navigation.php
+++ b/mod/navigation.php
@@ -2,7 +2,7 @@
 
 require_once("include/nav.php");
 
-function navigation_content(App &$a) {
+function navigation_content(App $a) {
 
 	$nav_info = nav_info($a);
 
diff --git a/mod/network.php b/mod/network.php
index 61df38fb1..2f33c62f7 100644
--- a/mod/network.php
+++ b/mod/network.php
@@ -1,5 +1,5 @@
 <?php
-function network_init(App &$a) {
+function network_init(App $a) {
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
 		return;
@@ -221,7 +221,7 @@ function saved_searches($search) {
  *
  * @return Array ( $no_active, $comment_active, $postord_active, $conv_active, $new_active, $starred_active, $bookmarked_active, $spam_active );
  */
-function network_query_get_sel_tab(App &$a) {
+function network_query_get_sel_tab(App $a) {
 	$no_active='';
 	$starred_active = '';
 	$new_active = '';
@@ -292,7 +292,7 @@ function network_query_get_sel_net() {
 	return $network;
 }
 
-function network_query_get_sel_group(App &$a) {
+function network_query_get_sel_group(App $a) {
 	$group = false;
 
 	if($a->argc >= 2 && is_numeric($a->argv[1])) {
@@ -303,7 +303,7 @@ function network_query_get_sel_group(App &$a) {
 }
 
 
-function network_content(&$a, $update = 0) {
+function network_content(App $a, $update = 0) {
 
 	require_once('include/conversation.php');
 
@@ -728,7 +728,7 @@ function network_content(&$a, $update = 0) {
 					intval($parents),
 					intval($max_comments + 1)
 				);
-	
+
 				if (dbm::is_result($thread_items))
 					$items = array_merge($items, $thread_items);
 			}
@@ -805,11 +805,11 @@ function network_content(&$a, $update = 0) {
 
 /**
  * @brief Get the network tabs menu
- * 
+ *
  * @param app $a The global App
  * @return string Html of the networktab
  */
-function network_tabs(App &$a) {
+function network_tabs(App $a) {
 	// item filter tabs
 	/// @TODO fix this logic, reduce duplication
 	/// $a->page['content'] .= '<div class="tabs-wrapper">';
@@ -892,7 +892,7 @@ function network_tabs(App &$a) {
 
 	$arr = array('tabs' => $tabs);
 	call_hooks('network_tabs', $arr);
-	
+
 	$tpl = get_markup_template('common_tabs.tpl');
 
 	return replace_macros($tpl, array('$tabs' => $arr['tabs']));
diff --git a/mod/newmember.php b/mod/newmember.php
index 1ef098506..a5e41f1e2 100644
--- a/mod/newmember.php
+++ b/mod/newmember.php
@@ -1,6 +1,6 @@
 <?php
 
-function newmember_content(App &$a) {
+function newmember_content(App $a) {
 
 
 	$o = '<h1>' . t('Welcome to Friendica') . '</h1>';
@@ -15,7 +15,7 @@ function newmember_content(App &$a) {
 
 	$o .= '<ul>';
 
-	$o .= '<li> ' . '<a target="newmember" href="help/guide">' . t('Friendica Walk-Through') . '</a><br />' . t('On your <em>Quick Start</em> page - find a brief introduction to your profile and network tabs, make some new connections, and find some groups to join.') . '</li>' . EOL; 
+	$o .= '<li> ' . '<a target="newmember" href="help/guide">' . t('Friendica Walk-Through') . '</a><br />' . t('On your <em>Quick Start</em> page - find a brief introduction to your profile and network tabs, make some new connections, and find some groups to join.') . '</li>' . EOL;
 
 	$o .= '</ul>';
 
@@ -23,7 +23,7 @@ function newmember_content(App &$a) {
 
 	$o .= '<ul>';
 
-	$o .= '<li>' . '<a target="newmember" href="settings">' . t('Go to Your Settings') . '</a><br />' . t('On your <em>Settings</em> page -  change your initial password. Also make a note of your Identity Address. This looks just like an email address - and will be useful in making friends on the free social web.') . '</li>' . EOL; 
+	$o .= '<li>' . '<a target="newmember" href="settings">' . t('Go to Your Settings') . '</a><br />' . t('On your <em>Settings</em> page -  change your initial password. Also make a note of your Identity Address. This looks just like an email address - and will be useful in making friends on the free social web.') . '</li>' . EOL;
 
 	$o .= '<li>' . t('Review the other settings, particularly the privacy settings. An unpublished directory listing is like having an unlisted phone number. In general, you should probably publish your listing - unless all of your friends and potential friends know exactly how to find you.') . '</li>' . EOL;
 
@@ -33,7 +33,7 @@ function newmember_content(App &$a) {
 
 	$o .= '<ul>';
 
-	$o .= '<li>' . '<a target="newmember" href="profile_photo">' . t('Upload Profile Photo') . '</a><br />' . t('Upload a profile photo if you have not done so already. Studies have shown that people with real photos of themselves are ten times more likely to make friends than people who do not.') . '</li>' . EOL;  
+	$o .= '<li>' . '<a target="newmember" href="profile_photo">' . t('Upload Profile Photo') . '</a><br />' . t('Upload a profile photo if you have not done so already. Studies have shown that people with real photos of themselves are ten times more likely to make friends than people who do not.') . '</li>' . EOL;
 
 	$o .= '<li>' . '<a target="newmember" href="profiles">' . t('Edit Your Profile') . '</a><br />' . t('Edit your <strong>default</strong> profile to your liking. Review the settings for hiding your list of friends and hiding the profile from unknown visitors.') . '</li>' . EOL;
 
@@ -46,7 +46,7 @@ function newmember_content(App &$a) {
 	$o .= '<ul>';
 
     $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
-	
+
 	if(! $mail_disabled)
 		$o .= '<li>' . '<a target="newmember" href="settings/connectors">' . t('Importing Emails') . '</a><br />' . t('Enter your email access information on your Connector Settings page if you wish to import and interact with friends or mailing lists from your email INBOX') . '</li>' . EOL;
 
diff --git a/mod/nodeinfo.php b/mod/nodeinfo.php
index 104fecb75..e084b25da 100644
--- a/mod/nodeinfo.php
+++ b/mod/nodeinfo.php
@@ -1,13 +1,13 @@
 <?php
 /**
  * @file mod/nodeinfo.php
- * 
+ *
  * Documentation: http://nodeinfo.diaspora.software/schema.html
 */
 
 require_once("include/plugin.php");
 
-function nodeinfo_wellknown(App &$a) {
+function nodeinfo_wellknown(App $a) {
 	if (!get_config("system", "nodeinfo")) {
 		http_status_exit(404);
 		killme();
@@ -20,7 +20,7 @@ function nodeinfo_wellknown(App &$a) {
 	exit;
 }
 
-function nodeinfo_init(App &$a){
+function nodeinfo_init(App $a) {
 	if (!get_config("system", "nodeinfo")) {
 		http_status_exit(404);
 		killme();
diff --git a/mod/nogroup.php b/mod/nogroup.php
index c44840627..11b7bdc7a 100644
--- a/mod/nogroup.php
+++ b/mod/nogroup.php
@@ -4,7 +4,7 @@ require_once('include/Contact.php');
 require_once('include/socgraph.php');
 require_once('include/contact_selectors.php');
 
-function nogroup_init(App &$a) {
+function nogroup_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -21,7 +21,7 @@ function nogroup_init(App &$a) {
 }
 
 
-function nogroup_content(App &$a) {
+function nogroup_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/noscrape.php b/mod/noscrape.php
index 758ce8ba5..83ab71ce1 100644
--- a/mod/noscrape.php
+++ b/mod/noscrape.php
@@ -1,6 +1,6 @@
 <?php
 
-function noscrape_init(App &$a) {
+function noscrape_init(App $a) {
 
 	if($a->argc > 1)
 		$which = $a->argv[1];
diff --git a/mod/notes.php b/mod/notes.php
index b2aa5487a..c7cfe8d70 100644
--- a/mod/notes.php
+++ b/mod/notes.php
@@ -1,6 +1,6 @@
 <?php
 
-function notes_init(App &$a) {
+function notes_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -17,7 +17,7 @@ function notes_init(App &$a) {
 }
 
 
-function notes_content(&$a,$update = false) {
+function notes_content(App $a, $update = false) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/notice.php b/mod/notice.php
index e338d8752..b7029397b 100644
--- a/mod/notice.php
+++ b/mod/notice.php
@@ -1,7 +1,7 @@
 <?php
 	/* identi.ca -> friendica items permanent-url compatibility */
-	
-	function notice_init(App &$a){
+
+	function notice_init(App $a) {
 		$id = $a->argv[1];
 		$r = q("SELECT user.nickname FROM user LEFT JOIN item ON item.uid=user.uid WHERE item.id=%d",
 				intval($id)
diff --git a/mod/notifications.php b/mod/notifications.php
index 47e4cd034..8cd1b29ea 100644
--- a/mod/notifications.php
+++ b/mod/notifications.php
@@ -9,7 +9,7 @@ require_once("include/NotificationsManager.php");
 require_once("include/contact_selectors.php");
 require_once("include/network.php");
 
-function notifications_post(App &$a) {
+function notifications_post(App $a) {
 
 	if (! local_user()) {
 		goaway(z_root());
@@ -65,7 +65,7 @@ function notifications_post(App &$a) {
 	}
 }
 
-function notifications_content(App &$a) {
+function notifications_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/notify.php b/mod/notify.php
index bd7a7faf4..0026f5ca6 100644
--- a/mod/notify.php
+++ b/mod/notify.php
@@ -1,7 +1,7 @@
 <?php
 require_once('include/NotificationsManager.php');
 
-function notify_init(App &$a) {
+function notify_init(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -12,7 +12,7 @@ function notify_init(App &$a) {
 		$note = $nm->getByID($a->argv[2]);
 		if ($note) {
 			$nm->setSeen($note);
-		
+
 			// The friendica client has problems with the GUID. this is some workaround
 			if ($a->is_friendica_app()) {
 				require_once("include/items.php");
@@ -39,13 +39,13 @@ function notify_init(App &$a) {
 
 }
 
-function notify_content(App &$a) {
+function notify_content(App $a) {
 	if (! local_user()) {
 		return login();
 	}
 
 	$nm = new NotificationsManager();
-	
+
 	$notif_tpl = get_markup_template('notifications.tpl');
 
 	$not_tpl = get_markup_template('notify.tpl');
diff --git a/mod/oembed.php b/mod/oembed.php
index 1d6e6145c..7770c62fb 100644
--- a/mod/oembed.php
+++ b/mod/oembed.php
@@ -1,7 +1,7 @@
 <?php
 require_once("include/oembed.php");
 
-function oembed_content(App &$a){
+function oembed_content(App $a) {
 	// logger('mod_oembed ' . $a->query_string, LOGGER_ALL);
 
 	if ($a->argv[1]=='b2h'){
diff --git a/mod/oexchange.php b/mod/oexchange.php
index 49c5d01f4..47547e691 100644
--- a/mod/oexchange.php
+++ b/mod/oexchange.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function oexchange_init(App &$a) {
+function oexchange_init(App $a) {
 
 	if(($a->argc > 1) && ($a->argv[1] === 'xrd')) {
 		$tpl = get_markup_template('oexchange_xrd.tpl');
@@ -14,7 +14,7 @@ function oexchange_init(App &$a) {
 
 }
 
-function oexchange_content(App &$a) {
+function oexchange_content(App $a) {
 
 	if (! local_user()) {
 		$o = login(false);
@@ -26,13 +26,13 @@ function oexchange_content(App &$a) {
 		return;
 	}
 
-	$url = (((x($_REQUEST,'url')) && strlen($_REQUEST['url'])) 
+	$url = (((x($_REQUEST,'url')) && strlen($_REQUEST['url']))
 		? urlencode(notags(trim($_REQUEST['url']))) : '');
-	$title = (((x($_REQUEST,'title')) && strlen($_REQUEST['title'])) 
+	$title = (((x($_REQUEST,'title')) && strlen($_REQUEST['title']))
 		? '&title=' . urlencode(notags(trim($_REQUEST['title']))) : '');
-	$description = (((x($_REQUEST,'description')) && strlen($_REQUEST['description'])) 
+	$description = (((x($_REQUEST,'description')) && strlen($_REQUEST['description']))
 		? '&description=' . urlencode(notags(trim($_REQUEST['description']))) : '');
-	$tags = (((x($_REQUEST,'tags')) && strlen($_REQUEST['tags'])) 
+	$tags = (((x($_REQUEST,'tags')) && strlen($_REQUEST['tags']))
 		? '&tags=' . urlencode(notags(trim($_REQUEST['tags']))) : '');
 
 	$s = fetch_url(App::get_baseurl() . '/parse_url?f=&url=' . $url . $title . $description . $tags);
diff --git a/mod/openid.php b/mod/openid.php
index ce707c415..59a753014 100644
--- a/mod/openid.php
+++ b/mod/openid.php
@@ -4,7 +4,7 @@
 require_once('library/openid.php');
 
 
-function openid_content(App &$a) {
+function openid_content(App $a) {
 
 	$noid = get_config('system','no_openid');
 	if($noid)
@@ -47,7 +47,7 @@ function openid_content(App &$a) {
 				require_once('include/security.php');
 				authenticate_success($r[0],true,true);
 
-				// just in case there was no return url set 
+				// just in case there was no return url set
 				// and we fell through
 
 				goaway(z_root());
diff --git a/mod/opensearch.php b/mod/opensearch.php
index 1a7d4cd30..a599ddc1e 100644
--- a/mod/opensearch.php
+++ b/mod/opensearch.php
@@ -1,18 +1,18 @@
 <?php
-    function opensearch_content(App &$a) {
-    	
+    function opensearch_content(App $a) {
+
 		$tpl = get_markup_template('opensearch.tpl');
-	
+
 		header("Content-type: application/opensearchdescription+xml");
-	
+
 		$o = replace_macros($tpl, array(
 			'$baseurl' => App::get_baseurl(),
 			'$nodename' => $a->get_hostname(),
 		));
-		
+
 		echo $o;
-		
+
 		killme();
-		
+
 	}
 ?>
\ No newline at end of file
diff --git a/mod/ostatus_subscribe.php b/mod/ostatus_subscribe.php
index b2f536e6d..a9f7c3a90 100644
--- a/mod/ostatus_subscribe.php
+++ b/mod/ostatus_subscribe.php
@@ -3,7 +3,7 @@
 require_once('include/Scrape.php');
 require_once('include/follow.php');
 
-function ostatus_subscribe_content(App &$a) {
+function ostatus_subscribe_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/parse_url.php b/mod/parse_url.php
index 44cf80935..2c610f275 100644
--- a/mod/parse_url.php
+++ b/mod/parse_url.php
@@ -1,9 +1,9 @@
 <?php
 
-/** 
+/**
  * @file mod/parse_url.php
  * @brief The parse_url module
- * 
+ *
  * This module does parse an url for embedable content (audio, video, image files or link)
  * information and does format this information to BBCode or html (this depends
  * on the user settings - default is BBCode output).
@@ -11,15 +11,15 @@
  * (Note: This is not always possible and in some case not useful because
  * the richtext editor doesn't support all kind of html).
  * Otherwise the output will be constructed BBCode.
- * 
- * @see ParseUrl::getSiteinfo() for more information about scraping embeddable content 
+ *
+ * @see ParseUrl::getSiteinfo() for more information about scraping embeddable content
 */
 
 use \Friendica\ParseUrl;
 
 require_once("include/items.php");
 
-function parse_url_content(App &$a) {
+function parse_url_content(App $a) {
 
 	$text = null;
 	$str_tags = "";
@@ -153,20 +153,20 @@ function parse_url_content(App &$a) {
 
 /**
  * @brief Legacy function to call ParseUrl::getSiteinfoCached
- * 
+ *
  * Note: We have moved the function to ParseUrl.php. This function is only for
  * legacy support and will be remove in the future
- * 
+ *
  * @param type $url The url of the page which should be scraped
  * @param type $no_guessing If true the parse doens't search for
  *    preview pictures
  * @param type $do_oembed The false option is used by the function fetch_oembed()
  *    to avoid endless loops
- * 
+ *
  * @return array which contains needed data for embedding
- * 
+ *
  * @see ParseUrl::getSiteinfoCached()
- * 
+ *
  * @todo Remove this function after all Addons has been changed to use
  *    ParseUrl::getSiteinfoCached
  */
diff --git a/mod/photo.php b/mod/photo.php
index 9744b9f23..6562599ca 100644
--- a/mod/photo.php
+++ b/mod/photo.php
@@ -3,7 +3,7 @@
 require_once('include/security.php');
 require_once('include/Photo.php');
 
-function photo_init(App &$a) {
+function photo_init(App $a) {
 	global $_SERVER;
 
 	$prvcachecontrol = false;
diff --git a/mod/photos.php b/mod/photos.php
index 2e86f7fbb..60e5dee64 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -10,7 +10,7 @@ require_once('include/tags.php');
 require_once('include/threads.php');
 require_once('include/Probe.php');
 
-function photos_init(App &$a) {
+function photos_init(App $a) {
 
 	if ($a->argc > 1)
 		auto_redir($a, $a->argv[1]);
@@ -112,7 +112,7 @@ function photos_init(App &$a) {
 
 
 
-function photos_post(App &$a) {
+function photos_post(App $a) {
 
 	logger('mod-photos: photos_post: begin' , LOGGER_DEBUG);
 
@@ -946,7 +946,7 @@ function photos_post(App &$a) {
 
 
 
-function photos_content(App &$a) {
+function photos_content(App $a) {
 
 	// URLs:
 	// photos/name
@@ -1308,7 +1308,7 @@ function photos_content(App &$a) {
 
 	}
 
-	/** 
+	/**
 	 * Display one photo
 	 */
 
diff --git a/mod/poco.php b/mod/poco.php
index 0415e1a2c..4ce075301 100644
--- a/mod/poco.php
+++ b/mod/poco.php
@@ -2,7 +2,7 @@
 // See here for a documentation for portable contacts:
 // https://web.archive.org/web/20160405005550/http://portablecontacts.net/draft-spec.html
 
-function poco_init(App &$a) {
+function poco_init(App $a) {
 	require_once("include/bbcode.php");
 
 	$system_mode = false;
diff --git a/mod/poke.php b/mod/poke.php
index 2e15ed853..5161129b3 100644
--- a/mod/poke.php
+++ b/mod/poke.php
@@ -4,11 +4,11 @@
  *
  * Poke, prod, finger, or otherwise do unspeakable things to somebody - who must be a connection in your address book
  * This function can be invoked with the required arguments (verb and cid and private and possibly parent) silently via ajax or
- * other web request. You must be logged in and connected to a profile. 
+ * other web request. You must be logged in and connected to a profile.
  * If the required arguments aren't present, we'll display a simple form to choose a recipient and a verb.
  * parent is a special argument which let's you attach this activity as a comment to an existing conversation, which
  * may have started with somebody else poking (etc.) somebody, but this isn't necessary. This can be used in the more pokes
- * plugin version to have entire conversations where Alice poked Bob, Bob fingered Alice, Alice hugged Bob, etc.  
+ * plugin version to have entire conversations where Alice poked Bob, Bob fingered Alice, Alice hugged Bob, etc.
  *
  * private creates a private conversation with the recipient. Otherwise your profile's default post privacy is used.
  *
@@ -19,7 +19,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
-function poke_init(App &$a) {
+function poke_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -148,7 +148,7 @@ function poke_init(App &$a) {
 
 
 
-function poke_content(App &$a) {
+function poke_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/post.php b/mod/post.php
index 076587839..c8a88e66c 100644
--- a/mod/post.php
+++ b/mod/post.php
@@ -9,8 +9,8 @@ require_once('include/salmon.php');
 require_once('include/crypto.php');
 // not yet ready for prime time
 //require_once('include/zot.php');
-	
-function post_post(App &$a) {
+
+function post_post(App $a) {
 
 	$bulk_delivery = false;
 
@@ -19,7 +19,7 @@ function post_post(App &$a) {
 	}
 	else {
 		$nickname = $a->argv[2];
-		$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' 
+		$r = q("SELECT * FROM `user` WHERE `nickname` = '%s'
 				AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
 			dbesc($nickname)
 		);
diff --git a/mod/pretheme.php b/mod/pretheme.php
index 694fd5ba2..6dd6b781a 100644
--- a/mod/pretheme.php
+++ b/mod/pretheme.php
@@ -1,7 +1,7 @@
 <?php
 
-function pretheme_init(App &$a) {
-	
+function pretheme_init(App $a) {
+
 	if($_REQUEST['theme']) {
 		$theme = $_REQUEST['theme'];
 		$info = get_theme_info($theme);
diff --git a/mod/probe.php b/mod/probe.php
index c368a50f5..95f856bfa 100644
--- a/mod/probe.php
+++ b/mod/probe.php
@@ -2,13 +2,13 @@
 
 require_once('include/Scrape.php');
 
-function probe_content(App &$a) {
+function probe_content(App $a) {
 
 	$o .= '<h3>Probe Diagnostic</h3>';
 
 	$o .= '<form action="probe" method="get">';
 	$o .= 'Lookup address: <input type="text" style="width: 250px;" name="addr" value="' . $_GET['addr'] .'" />';
-	$o .= '<input type="submit" name="submit" value="Submit" /></form>'; 
+	$o .= '<input type="submit" name="submit" value="Submit" /></form>';
 
 	$o .= '<br /><br />';
 
diff --git a/mod/profile.php b/mod/profile.php
index 32d3985b7..5dd8293c7 100644
--- a/mod/profile.php
+++ b/mod/profile.php
@@ -4,7 +4,7 @@ require_once('include/contact_widgets.php');
 require_once('include/redir.php');
 
 
-function profile_init(App &$a) {
+function profile_init(App $a) {
 
 	if(! x($a->page,'aside'))
 		$a->page['aside'] = '';
@@ -71,7 +71,7 @@ function profile_init(App &$a) {
 }
 
 
-function profile_content(&$a, $update = 0) {
+function profile_content(App $a, $update = 0) {
 
 	$category = $datequery = $datequery2 = '';
 
diff --git a/mod/profile_photo.php b/mod/profile_photo.php
index c600dd1f8..f9bf60cf5 100644
--- a/mod/profile_photo.php
+++ b/mod/profile_photo.php
@@ -2,7 +2,7 @@
 
 require_once("include/Photo.php");
 
-function profile_photo_init(App &$a) {
+function profile_photo_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -13,7 +13,7 @@ function profile_photo_init(App &$a) {
 }
 
 
-function profile_photo_post(App &$a) {
+function profile_photo_post(App $a) {
 
 	if (! local_user()) {
 		notice ( t('Permission denied.') . EOL );
@@ -174,13 +174,13 @@ function profile_photo_post(App &$a) {
 
 
 if(! function_exists('profile_photo_content')) {
-function profile_photo_content(App &$a) {
+function profile_photo_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL );
 		return;
 	}
-	
+
 	$newuser = false;
 
 	if($a->argc == 2 && $a->argv[1] === 'new')
@@ -191,9 +191,9 @@ function profile_photo_content(App &$a) {
 			notice( t('Permission denied.') . EOL );
 			return;
 		};
-		
+
 //		check_form_security_token_redirectOnErr('/profile_photo', 'profile_photo');
-        
+
 		$resource_id = $a->argv[2];
 		//die(":".local_user());
 		$r=q("SELECT * FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s' ORDER BY `scale` ASC",
@@ -246,7 +246,7 @@ function profile_photo_content(App &$a) {
 
 
 	if(! x($a->config,'imagecrop')) {
-	
+
 		$tpl = get_markup_template('profile_photo.tpl');
 
 		$o .= replace_macros($tpl,array(
@@ -284,7 +284,7 @@ function profile_photo_content(App &$a) {
 
 
 if(! function_exists('profile_photo_crop_ui_head')) {
-function profile_photo_crop_ui_head(&$a, $ph){
+function profile_photo_crop_ui_head(App $a, $ph) {
 	$max_length = get_config('system','max_image_length');
 	if (! $max_length) {
 		$max_length = MAX_IMAGE_LENGTH;
@@ -303,11 +303,11 @@ function profile_photo_crop_ui_head(&$a, $ph){
 	}
 
 	$hash = photo_new_resource();
-	
+
 
 	$smallest = 0;
 
-	$r = $ph->store(local_user(), 0 , $hash, $filename, t('Profile Photos'), 0 );	
+	$r = $ph->store(local_user(), 0 , $hash, $filename, t('Profile Photos'), 0 );
 
 	if ($r) {
 		info( t('Image uploaded successfully.') . EOL );
@@ -317,7 +317,7 @@ function profile_photo_crop_ui_head(&$a, $ph){
 
 	if ($width > 640 || $height > 640) {
 		$ph->scaleImage(640);
-		$r = $ph->store(local_user(), 0 , $hash, $filename, t('Profile Photos'), 1 );	
+		$r = $ph->store(local_user(), 0 , $hash, $filename, t('Profile Photos'), 1 );
 
 		if ($r === false) {
 			notice( sprintf(t('Image size reduction [%s] failed.'),"640") . EOL );
diff --git a/mod/profiles.php b/mod/profiles.php
index bf2f20d2a..abc9dda55 100644
--- a/mod/profiles.php
+++ b/mod/profiles.php
@@ -2,7 +2,7 @@
 require_once("include/Contact.php");
 require_once('include/Probe.php');
 
-function profiles_init(App &$a) {
+function profiles_init(App $a) {
 
 	nav_set_selected('profiles');
 
@@ -160,7 +160,7 @@ function profile_clean_keywords($keywords) {
 	return $keywords;
 }
 
-function profiles_post(App &$a) {
+function profiles_post(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
@@ -601,7 +601,7 @@ function profile_activity($changed, $value) {
 }
 
 
-function profiles_content(App &$a) {
+function profiles_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/profperm.php b/mod/profperm.php
index bbb055b02..a414d8947 100644
--- a/mod/profperm.php
+++ b/mod/profperm.php
@@ -1,6 +1,6 @@
 <?php
 
-function profperm_init(App &$a) {
+function profperm_init(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -14,7 +14,7 @@ function profperm_init(App &$a) {
 }
 
 
-function profperm_content(App &$a) {
+function profperm_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied') . EOL);
@@ -109,9 +109,9 @@ function profperm_content(App &$a) {
 	}
 
 	$o .= '<div id="prof-update-wrapper">';
-	if($change) 
+	if($change)
 		$o = '';
-	
+
 	$o .= '<div id="prof-members-title">';
 	$o .= '<h3>' . t('Visible To') . '</h3>';
 	$o .= '</div>';
diff --git a/mod/pubsub.php b/mod/pubsub.php
index 308e237d5..2ba1958a2 100644
--- a/mod/pubsub.php
+++ b/mod/pubsub.php
@@ -26,7 +26,7 @@ function hub_post_return() {
 
 
 
-function pubsub_init(App &$a) {
+function pubsub_init(App $a) {
 
 	$nick       = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
 	$contact_id = (($a->argc > 2) ? intval($a->argv[2])       : 0 );
@@ -57,7 +57,7 @@ function pubsub_init(App &$a) {
 
 		$sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
 
-		$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d 
+		$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d
 			AND `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1",
 			intval($contact_id),
 			intval($owner['uid'])
@@ -75,7 +75,7 @@ function pubsub_init(App &$a) {
 
 		$contact = $r[0];
 
-		// We must initiate an unsubscribe request with a verify_token. 
+		// We must initiate an unsubscribe request with a verify_token.
 		// Don't allow outsiders to unsubscribe us.
 
 		if($hub_mode === 'unsubscribe') {
@@ -98,7 +98,7 @@ function pubsub_init(App &$a) {
 
 require_once('include/security.php');
 
-function pubsub_post(App &$a) {
+function pubsub_post(App $a) {
 
 	$xml = file_get_contents('php://input');
 
diff --git a/mod/pubsubhubbub.php b/mod/pubsubhubbub.php
index a6c36631a..dceb16ae1 100644
--- a/mod/pubsubhubbub.php
+++ b/mod/pubsubhubbub.php
@@ -4,7 +4,7 @@ function post_var($name) {
 	return (x($_POST, $name)) ? notags(trim($_POST[$name])) : '';
 }
 
-function pubsubhubbub_init(App &$a) {
+function pubsubhubbub_init(App $a) {
 	// PuSH subscription must be considered "public" so just block it
 	// if public access isn't enabled.
 	if (get_config('system', 'block_public')) {
diff --git a/mod/qsearch.php b/mod/qsearch.php
index 118c93d9f..8512bea51 100644
--- a/mod/qsearch.php
+++ b/mod/qsearch.php
@@ -1,6 +1,6 @@
 <?php
 
-function qsearch_init(App &$a) {
+function qsearch_init(App $a) {
 
 	if (! local_user()) {
 		killme();
diff --git a/mod/randprof.php b/mod/randprof.php
index 08157a385..d8cffb380 100644
--- a/mod/randprof.php
+++ b/mod/randprof.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function randprof_init(App &$a) {
+function randprof_init(App $a) {
 	require_once('include/Contact.php');
 
 	$x = random_profile();
diff --git a/mod/receive.php b/mod/receive.php
index ec46ee742..3563f2d70 100644
--- a/mod/receive.php
+++ b/mod/receive.php
@@ -10,7 +10,7 @@ require_once('include/crypto.php');
 require_once('include/diaspora.php');
 
 
-function receive_post(App &$a) {
+function receive_post(App $a) {
 
 
 	$enabled = intval(get_config('system','diaspora_enabled'));
diff --git a/mod/redir.php b/mod/redir.php
index e951b2d2a..12f53900a 100644
--- a/mod/redir.php
+++ b/mod/redir.php
@@ -1,6 +1,6 @@
 <?php
 
-function redir_init(App &$a) {
+function redir_init(App $a) {
 
 	$url = ((x($_GET,'url')) ? $_GET['url'] : '');
 	$quiet = ((x($_GET,'quiet')) ? '&quiet=1' : '');
@@ -57,9 +57,9 @@ function redir_init(App &$a) {
 			intval(time() + 45)
 		);
 
-		logger('mod_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG); 
+		logger('mod_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG);
 		$dest = (($url) ? '&destination_url=' . $url : '');
-		goaway ($r[0]['poll'] . '?dfrn_id=' . $dfrn_id 
+		goaway ($r[0]['poll'] . '?dfrn_id=' . $dfrn_id
 			. '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=profile&sec=' . $sec . $dest . $quiet );
 	}
 
diff --git a/mod/register.php b/mod/register.php
index dd953de35..81e8c3ad8 100644
--- a/mod/register.php
+++ b/mod/register.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/user.php');
 
 if(! function_exists('register_post')) {
-function register_post(App &$a) {
+function register_post(App $a) {
 
 	global $lang;
 
@@ -172,7 +172,7 @@ function register_post(App &$a) {
 
 
 if(! function_exists('register_content')) {
-function register_content(App &$a) {
+function register_content(App $a) {
 
 	// logged in users can register others (people/pages/groups)
 	// even with closed registrations, unless specifically prohibited by site policy.
diff --git a/mod/regmod.php b/mod/regmod.php
index 44bdfe664..1983ca089 100644
--- a/mod/regmod.php
+++ b/mod/regmod.php
@@ -97,7 +97,7 @@ function user_deny($hash) {
 
 }
 
-function regmod_content(App &$a) {
+function regmod_content(App $a) {
 
 	global $lang;
 
diff --git a/mod/removeme.php b/mod/removeme.php
index 4257667c4..40033624d 100644
--- a/mod/removeme.php
+++ b/mod/removeme.php
@@ -1,6 +1,6 @@
 <?php
 
-function removeme_post(App &$a) {
+function removeme_post(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -32,7 +32,7 @@ function removeme_post(App &$a) {
 
 }
 
-function removeme_content(App &$a) {
+function removeme_content(App $a) {
 
 	if (! local_user()) {
 		goaway(z_root());
diff --git a/mod/repair_ostatus.php b/mod/repair_ostatus.php
index 07721220a..3e9130e0e 100755
--- a/mod/repair_ostatus.php
+++ b/mod/repair_ostatus.php
@@ -3,7 +3,7 @@
 require_once('include/Scrape.php');
 require_once('include/follow.php');
 
-function repair_ostatus_content(App &$a) {
+function repair_ostatus_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL);
diff --git a/mod/rsd_xml.php b/mod/rsd_xml.php
index 13c84c3fc..3b74a143d 100644
--- a/mod/rsd_xml.php
+++ b/mod/rsd_xml.php
@@ -2,7 +2,7 @@
 
 
 
-function rsd_xml_content(App &$a) {
+function rsd_xml_content(App $a) {
 	header ("Content-Type: text/xml");
 	echo '<?xml version="1.0" encoding="UTF-8"?>
  <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd">
diff --git a/mod/salmon.php b/mod/salmon.php
index 6c3aea211..69809f523 100644
--- a/mod/salmon.php
+++ b/mod/salmon.php
@@ -19,7 +19,7 @@ function salmon_return($val) {
 
 }
 
-function salmon_post(App &$a) {
+function salmon_post(App $a) {
 
 	$xml = file_get_contents('php://input');
 
@@ -156,7 +156,7 @@ function salmon_post(App &$a) {
 		if(get_pconfig($importer['uid'],'system','ostatus_autofriend')) {
 			$result = new_contact($importer['uid'],$author_link);
 			if($result['success']) {
-				$r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND ( `url` = '%s' OR `alias` = '%s') 
+				$r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND ( `url` = '%s' OR `alias` = '%s')
 					AND `uid` = %d LIMIT 1",
 					dbesc(NETWORK_OSTATUS),
 					dbesc($author_link),
diff --git a/mod/search.php b/mod/search.php
index 22879f7f9..df604e367 100644
--- a/mod/search.php
+++ b/mod/search.php
@@ -43,7 +43,7 @@ function search_saved_searches() {
 }
 
 
-function search_init(App &$a) {
+function search_init(App $a) {
 
 	$search = ((x($_GET,'search')) ? notags(trim(rawurldecode($_GET['search']))) : '');
 
@@ -81,13 +81,13 @@ function search_init(App &$a) {
 
 
 
-function search_post(App &$a) {
+function search_post(App $a) {
 	if(x($_POST,'search'))
 		$a->data['search'] = $_POST['search'];
 }
 
 
-function search_content(App &$a) {
+function search_content(App $a) {
 
 	if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 		notice( t('Public access denied.') . EOL);
diff --git a/mod/session.php b/mod/session.php
index 22c855edb..a73bcc78f 100644
--- a/mod/session.php
+++ b/mod/session.php
@@ -1,5 +1,5 @@
 <?php
 
-function session_content(&$a) {
+function session_content(App $a) {
 
 }
diff --git a/mod/settings.php b/mod/settings.php
index 1fbd24325..32ccaf541 100644
--- a/mod/settings.php
+++ b/mod/settings.php
@@ -16,7 +16,7 @@ function get_theme_config_file($theme){
 	return null;
 }
 
-function settings_init(App &$a) {
+function settings_init(App $a) {
 
 	if (! local_user()) {
 		notice( t('Permission denied.') . EOL );
@@ -116,7 +116,7 @@ function settings_init(App &$a) {
 }
 
 
-function settings_post(App &$a) {
+function settings_post(App $a) {
 
 	if (! local_user()) {
 		return;
@@ -654,7 +654,7 @@ function settings_post(App &$a) {
 }
 
 
-function settings_content(App &$a) {
+function settings_content(App $a) {
 
 	$o = '';
 	nav_set_selected('settings');
diff --git a/mod/share.php b/mod/share.php
index f2e016708..928ccdef2 100644
--- a/mod/share.php
+++ b/mod/share.php
@@ -1,12 +1,12 @@
 <?php
-function share_init(App &$a) {
+function share_init(App $a) {
 
 	$post_id = (($a->argc > 1) ? intval($a->argv[1]) : 0);
 	if((! $post_id) || (! local_user()))
 		killme();
 
-	$r = q("SELECT item.*, contact.network FROM `item` 
-		inner join contact on `item`.`contact-id` = `contact`.`id` 
+	$r = q("SELECT item.*, contact.network FROM `item`
+		inner join contact on `item`.`contact-id` = `contact`.`id`
 		WHERE `item`.`id` = %d AND `item`.`uid` = %d LIMIT 1",
 
 		intval($post_id),
diff --git a/mod/smilies.php b/mod/smilies.php
index 8e04d5d05..4d8ab6bca 100644
--- a/mod/smilies.php
+++ b/mod/smilies.php
@@ -6,7 +6,7 @@
 
 require_once("include/Smilies.php");
 
-function smilies_content(App &$a) {
+function smilies_content(App $a) {
 	if ($a->argv[1]==="json"){
 		$tmp = Smilies::get_list();
 		$results = array();
diff --git a/mod/starred.php b/mod/starred.php
index c23b07b8b..46d3fcff6 100644
--- a/mod/starred.php
+++ b/mod/starred.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function starred_init(App &$a) {
+function starred_init(App $a) {
 
 	require_once("include/threads.php");
 
diff --git a/mod/statistics_json.php b/mod/statistics_json.php
index 2f2adaafe..07444d2bb 100644
--- a/mod/statistics_json.php
+++ b/mod/statistics_json.php
@@ -5,7 +5,7 @@
 
 require_once("include/plugin.php");
 
-function statistics_json_init(App &$a) {
+function statistics_json_init(App $a) {
 
         if (!get_config("system", "nodeinfo")) {
                 http_status_exit(404);
diff --git a/mod/subthread.php b/mod/subthread.php
index c689f7f6c..646a4230c 100644
--- a/mod/subthread.php
+++ b/mod/subthread.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
-function subthread_content(App &$a) {
+function subthread_content(App $a) {
 
 	if(! local_user() && ! remote_user()) {
 		return;
@@ -49,7 +49,7 @@ function subthread_content(App &$a) {
 		}
 	}
 
-	// this represents the post owner on this system. 
+	// this represents the post owner on this system.
 
 	$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 		WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
diff --git a/mod/suggest.php b/mod/suggest.php
index a6c4b6e56..dd24fc0a2 100644
--- a/mod/suggest.php
+++ b/mod/suggest.php
@@ -3,7 +3,7 @@
 require_once('include/socgraph.php');
 require_once('include/contact_widgets.php');
 
-function suggest_init(App &$a) {
+function suggest_init(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -49,7 +49,7 @@ function suggest_init(App &$a) {
 
 
 
-function suggest_content(App &$a) {
+function suggest_content(App $a) {
 
 	require_once("mod/proxy.php");
 
diff --git a/mod/tagger.php b/mod/tagger.php
index da5c4700f..50099ac69 100644
--- a/mod/tagger.php
+++ b/mod/tagger.php
@@ -5,7 +5,7 @@ require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
-function tagger_content(App &$a) {
+function tagger_content(App $a) {
 
 	if(! local_user() && ! remote_user()) {
 		return;
diff --git a/mod/tagrm.php b/mod/tagrm.php
index 2a9a26e37..2e7f8b970 100644
--- a/mod/tagrm.php
+++ b/mod/tagrm.php
@@ -2,7 +2,7 @@
 
 require_once('include/bbcode.php');
 
-function tagrm_post(App &$a) {
+function tagrm_post(App $a) {
 
 	if (! local_user()) {
 		goaway(App::get_baseurl() . '/' . $_SESSION['photo_return']);
@@ -42,14 +42,14 @@ function tagrm_post(App &$a) {
 
 	info( t('Tag removed') . EOL );
 	goaway(App::get_baseurl() . '/' . $_SESSION['photo_return']);
-	
+
 	// NOTREACHED
 
 }
 
 
 
-function tagrm_content(App &$a) {
+function tagrm_content(App $a) {
 
 	$o = '';
 
diff --git a/mod/toggle_mobile.php b/mod/toggle_mobile.php
index 89b73cd44..f858d8913 100644
--- a/mod/toggle_mobile.php
+++ b/mod/toggle_mobile.php
@@ -1,6 +1,6 @@
 <?php
 
-function toggle_mobile_init(App &$a) {
+function toggle_mobile_init(App $a) {
 
 	if (isset($_GET['off'])) {
 		$_SESSION['show-mobile'] = false;
diff --git a/mod/uexport.php b/mod/uexport.php
index 1ca046d22..d886e13b2 100644
--- a/mod/uexport.php
+++ b/mod/uexport.php
@@ -1,6 +1,6 @@
 <?php
 
-function uexport_init(App &$a){
+function uexport_init(App $a) {
 	if (! local_user()) {
 		killme();
 	}
@@ -10,7 +10,7 @@ function uexport_init(App &$a){
 }
 
 /// @TODO Change space -> tab where wanted
-function uexport_content(App &$a){
+function uexport_content(App $a) {
 
     if ($a->argc > 1) {
         header("Content-type: application/json");
@@ -124,7 +124,7 @@ function uexport_account($a){
 /**
  * echoes account data and items as separated json, one per line
  */
-function uexport_all(App &$a) {
+function uexport_all(App $a) {
 
 	uexport_account($a);
 	echo "\n";
diff --git a/mod/uimport.php b/mod/uimport.php
index 15bc8322b..e9934393e 100644
--- a/mod/uimport.php
+++ b/mod/uimport.php
@@ -6,7 +6,7 @@
 
 require_once("include/uimport.php");
 
-function uimport_post(App &$a) {
+function uimport_post(App $a) {
 	switch($a->config['register_policy']) {
         case REGISTER_OPEN:
             $blocked = 0;
@@ -28,7 +28,7 @@ function uimport_post(App &$a) {
             $verified = 0;
             break;
 	}
-    
+
     if (x($_FILES,'accountfile')){
         /// @TODO Pass $blocked / $verified, send email to admin on REGISTER_APPROVE
         import_account($a, $_FILES['accountfile']);
@@ -36,8 +36,8 @@ function uimport_post(App &$a) {
     }
 }
 
-function uimport_content(App &$a) {
-	
+function uimport_content(App $a) {
+
 	if((! local_user()) && ($a->config['register_policy'] == REGISTER_CLOSED)) {
 		notice("Permission denied." . EOL);
 		return;
@@ -52,8 +52,8 @@ function uimport_content(App &$a) {
 			return;
 		}
 	}
-	
-	
+
+
 	if(x($_SESSION,'theme'))
 		unset($_SESSION['theme']);
 	if(x($_SESSION,'mobile-theme'))
diff --git a/mod/update_community.php b/mod/update_community.php
index 179e9c61c..9a39489dc 100644
--- a/mod/update_community.php
+++ b/mod/update_community.php
@@ -4,7 +4,7 @@
 
 require_once("mod/community.php");
 
-function update_community_content(App &$a) {
+function update_community_content(App $a) {
 
 	header("Content-type: text/html");
 	echo "<!DOCTYPE html><html><body>\r\n";
diff --git a/mod/update_display.php b/mod/update_display.php
index 230bbaa0b..86f4db825 100644
--- a/mod/update_display.php
+++ b/mod/update_display.php
@@ -5,7 +5,7 @@
 require_once("mod/display.php");
 require_once("include/group.php");
 
-function update_display_content(App &$a) {
+function update_display_content(App $a) {
 
 	$profile_uid = intval($_GET["p"]);
 
diff --git a/mod/update_network.php b/mod/update_network.php
index c6d33132c..869973ace 100644
--- a/mod/update_network.php
+++ b/mod/update_network.php
@@ -5,7 +5,7 @@
 require_once("mod/network.php");
 require_once("include/group.php");
 
-function update_network_content(App &$a) {
+function update_network_content(App $a) {
 
 	$profile_uid = intval($_GET["p"]);
 
diff --git a/mod/update_notes.php b/mod/update_notes.php
index b21f69805..d27cc4ca9 100644
--- a/mod/update_notes.php
+++ b/mod/update_notes.php
@@ -7,7 +7,7 @@
 
 require_once("mod/notes.php");
 
-function update_notes_content(App &$a) {
+function update_notes_content(App $a) {
 
 	$profile_uid = intval($_GET["p"]);
 
diff --git a/mod/update_profile.php b/mod/update_profile.php
index e16b0b5cc..b77a9cdcf 100644
--- a/mod/update_profile.php
+++ b/mod/update_profile.php
@@ -7,7 +7,7 @@
 
 require_once("mod/profile.php");
 
-function update_profile_content(App &$a) {
+function update_profile_content(App $a) {
 
 	$profile_uid = intval($_GET["p"]);
 
diff --git a/mod/videos.php b/mod/videos.php
index 433ce5fc6..3828b8f1f 100644
--- a/mod/videos.php
+++ b/mod/videos.php
@@ -6,7 +6,7 @@ require_once('include/security.php');
 require_once('include/redir.php');
 
 
-function videos_init(App &$a) {
+function videos_init(App $a) {
 
 	if($a->argc > 1)
 		auto_redir($a, $a->argv[1]);
@@ -102,7 +102,7 @@ function videos_init(App &$a) {
 
 
 
-function videos_post(App &$a) {
+function videos_post(App $a) {
 
 	$owner_uid = $a->data['user']['uid'];
 
@@ -182,7 +182,7 @@ function videos_post(App &$a) {
 
 
 
-function videos_content(App &$a) {
+function videos_content(App $a) {
 
 	// URLs (most aren't currently implemented):
 	// videos/name
diff --git a/mod/viewcontacts.php b/mod/viewcontacts.php
index 9c72a46e9..55afda9b6 100644
--- a/mod/viewcontacts.php
+++ b/mod/viewcontacts.php
@@ -2,7 +2,7 @@
 require_once('include/Contact.php');
 require_once('include/contact_selectors.php');
 
-function viewcontacts_init(App &$a) {
+function viewcontacts_init(App $a) {
 
 	if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 		return;
@@ -29,7 +29,7 @@ function viewcontacts_init(App &$a) {
 }
 
 
-function viewcontacts_content(App &$a) {
+function viewcontacts_content(App $a) {
 	require_once("mod/proxy.php");
 
 	if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
diff --git a/mod/viewsrc.php b/mod/viewsrc.php
index 8510bd539..a3f0affb5 100644
--- a/mod/viewsrc.php
+++ b/mod/viewsrc.php
@@ -1,7 +1,7 @@
 <?php
 
 
-function viewsrc_content(App &$a) {
+function viewsrc_content(App $a) {
 
 	if (! local_user()) {
 		notice( t('Access denied.') . EOL);
@@ -16,7 +16,7 @@ function viewsrc_content(App &$a) {
 		return;
 	}
 
-	$r = q("SELECT `item`.`body` FROM `item` 
+	$r = q("SELECT `item`.`body` FROM `item`
 		WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`deleted` = 0
 		and `item`.`moderated` = 0
 		AND `item`.`id` = '%s' LIMIT 1",
diff --git a/mod/wall_attach.php b/mod/wall_attach.php
index 5a7471782..0fc8b8a6a 100644
--- a/mod/wall_attach.php
+++ b/mod/wall_attach.php
@@ -3,7 +3,7 @@
 require_once('include/attach.php');
 require_once('include/datetime.php');
 
-function wall_attach_post(App &$a) {
+function wall_attach_post(App $a) {
 
 	$r_json = (x($_GET,'response') && $_GET['response']=='json');
 
diff --git a/mod/wall_upload.php b/mod/wall_upload.php
index c789262c6..82cd3652b 100644
--- a/mod/wall_upload.php
+++ b/mod/wall_upload.php
@@ -2,7 +2,7 @@
 
 require_once('include/Photo.php');
 
-function wall_upload_post(&$a, $desktopmode = true) {
+function wall_upload_post(App $a, $desktopmode = true) {
 
 	logger("wall upload: starting new upload", LOGGER_DEBUG);
 
diff --git a/mod/wallmessage.php b/mod/wallmessage.php
index e0c702cdb..c0a30bdcf 100644
--- a/mod/wallmessage.php
+++ b/mod/wallmessage.php
@@ -2,7 +2,7 @@
 
 require_once('include/message.php');
 
-function wallmessage_post(App &$a) {
+function wallmessage_post(App $a) {
 
 	$replyto = get_my_url();
 	if(! $replyto) {
@@ -73,7 +73,7 @@ function wallmessage_post(App &$a) {
 }
 
 
-function wallmessage_content(App &$a) {
+function wallmessage_content(App $a) {
 
 	if(! get_my_url()) {
 		notice( t('Permission denied.') . EOL);
@@ -134,9 +134,9 @@ function wallmessage_content(App &$a) {
 		'$nickname' => $user['nickname'],
 		'$linkurl' => t('Please enter a link URL:')
 	));
-	
 
-	
+
+
 	$tpl = get_markup_template('wallmessage.tpl');
 	$o .= replace_macros($tpl,array(
 		'$header' => t('Send Private Message'),
diff --git a/mod/webfinger.php b/mod/webfinger.php
index f08451ba7..eee0580e3 100644
--- a/mod/webfinger.php
+++ b/mod/webfinger.php
@@ -1,7 +1,7 @@
 <?php
 require_once("include/Probe.php");
 
-function webfinger_content(App &$a) {
+function webfinger_content(App $a) {
 
 	$o .= '<h3>Webfinger Diagnostic</h3>';
 
diff --git a/mod/xrd.php b/mod/xrd.php
index a56c7fbdf..7b812a7f9 100644
--- a/mod/xrd.php
+++ b/mod/xrd.php
@@ -2,7 +2,7 @@
 
 require_once('include/crypto.php');
 
-function xrd_init(App &$a) {
+function xrd_init(App $a) {
 
 	$uri = urldecode(notags(trim($_GET['uri'])));
 
diff --git a/view/theme/duepuntozero/config.php b/view/theme/duepuntozero/config.php
index 48c9c8709..381b06716 100644
--- a/view/theme/duepuntozero/config.php
+++ b/view/theme/duepuntozero/config.php
@@ -3,7 +3,7 @@
  * Theme settings
  */
 
-function theme_content(App &$a){
+function theme_content(App $a) {
 	if (!local_user()) {
 		return;
 	}
@@ -14,7 +14,7 @@ function theme_content(App &$a){
 	return clean_form($a, $colorset, $user);
 }
 
-function theme_post(App &$a){
+function theme_post(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -24,23 +24,23 @@ function theme_post(App &$a){
 	}
 }
 
-function theme_admin(App &$a){
+function theme_admin(App $a) {
 	$colorset = get_config( 'duepuntozero', 'colorset');
 	$user = false;
 
 	return clean_form($a, $colorset, $user);
 }
 
-function theme_admin_post(App &$a){
+function theme_admin_post(App $a) {
 	if (isset($_POST['duepuntozero-settings-submit'])){
 		set_config('duepuntozero', 'colorset', $_POST['duepuntozero_colorset']);
 	}
 }
 
 /// @TODO $a is no longer used
-function clean_form(&$a, &$colorset, $user){
+function clean_form(App $a, &$colorset, $user) {
 	$colorset = array(
-		'default'     =>t('default'), 
+		'default'     =>t('default'),
 		'greenzero'   =>t('greenzero'),
 		'purplezero'  =>t('purplezero'),
 		'easterbunny' =>t('easterbunny'),
diff --git a/view/theme/duepuntozero/theme.php b/view/theme/duepuntozero/theme.php
index bf1d031de..7d3c22469 100644
--- a/view/theme/duepuntozero/theme.php
+++ b/view/theme/duepuntozero/theme.php
@@ -1,6 +1,6 @@
 <?php
 
-function duepuntozero_init(App &$a) {
+function duepuntozero_init(App $a) {
 
 set_template_engine($a, 'smarty3');
 
@@ -24,7 +24,7 @@ set_template_engine($a, 'smarty3');
 $a->page['htmlhead'] .= <<< EOT
 <script>
 function insertFormatting(comment,BBcode,id) {
-	
+
 		var tmpStr = $("#comment-edit-text-" + id).val();
 		if(tmpStr == comment) {
 			tmpStr = "";
@@ -40,7 +40,7 @@ function insertFormatting(comment,BBcode,id) {
 		selected = document.selection.createRange();
 		if (BBcode == "url"){
 			selected.text = "["+BBcode+"]" + "http://" +  selected.text + "[/"+BBcode+"]";
-			} else			
+			} else
 		selected.text = "["+BBcode+"]" + selected.text + "[/"+BBcode+"]";
 	} else if (textarea.selectionStart || textarea.selectionStart == "0") {
 		var start = textarea.selectionStart;
diff --git a/view/theme/frio/config.php b/view/theme/frio/config.php
index 000ef2609..57e882657 100644
--- a/view/theme/frio/config.php
+++ b/view/theme/frio/config.php
@@ -1,7 +1,7 @@
 <?php
 require_once('view/theme/frio/php/Image.php');
 
-function theme_content(App &$a) {
+function theme_content(App $a) {
 	if (!local_user()) {
 		return;
 	}
@@ -16,10 +16,10 @@ function theme_content(App &$a) {
 	$arr["background_image"] = get_pconfig(local_user(),'frio', 'background_image' );
 	$arr["bg_image_option"] = get_pconfig(local_user(),'frio', 'bg_image_option' );
 
-	return frio_form($a, $arr);
+	return frio_form($arr);
 }
 
-function theme_post(App &$a) {
+function theme_post(App $a) {
 	if (!local_user()) {
 		return;
 	}
@@ -36,9 +36,9 @@ function theme_post(App &$a) {
 	}
 }
 
-function frio_form(&$a, $arr) {
+function frio_form($arr) {
 	require_once("view/theme/frio/php/schema.php");
-	
+
 	$scheme_info = get_schema_info($arr["schema"]);
 	$disable = $scheme_info["overwrites"];
 	if (!is_array($disable)) $disable = array();
diff --git a/view/theme/frio/php/frio_boot.php b/view/theme/frio/php/frio_boot.php
index 0e221f533..59a246bf9 100644
--- a/view/theme/frio/php/frio_boot.php
+++ b/view/theme/frio/php/frio_boot.php
@@ -2,18 +2,18 @@
 
 /**
  * @file view/theme/frio/php/frio_boot.php
- * 
+ *
  * @brief This file contains functions for page contstruction
- * 
+ *
  */
 
 
 /**
  * @brief Load page template in dependence of the template mode
- * 
+ *
  * @todo Check if this is really needed.
  */
-function load_page(App &$a) {
+function load_page(App $a) {
 	if(isset($_GET["mode"]) AND ($_GET["mode"] == "minimal")) {
 		require "view/theme/frio/minimal.php";
 	} elseif((isset($_GET["mode"]) AND ($_GET["mode"] == "none"))) {
@@ -27,16 +27,16 @@ function load_page(App &$a) {
 			require_once(str_replace('theme/' . current_theme() . '/', '', $template));
 	}
 
-	
+
 }
 
 
 /**
  * @brief Check if page is a modal page
- * 
+ *
  * This function checks if $_REQUEST['pagename'] is
  * a defined in a $modalpages
- * 
+ *
  * @return bool
  */
 function is_modal() {
@@ -48,16 +48,16 @@ function is_modal() {
 			$is_modal = true;
 		}
 	}
-	
+
 	return $is_modal;
 }
 
 /**
  * @brief Array with modalpages
- * 
+ *
  * The array contains the page names of the pages
  * which should displayed as modals
- * 
+ *
  * @return array Pagenames as path
  */
 function get_modalpage_list() {
@@ -74,10 +74,10 @@ function get_modalpage_list() {
 
 /**
  * @brief Array with standard pages
- * 
+ *
  * The array contains the page names of the pages
  * which should displayed as standard-page
- * 
+ *
  * @return array Pagenames as path
  */
 function get_standard_page_list() {
@@ -91,10 +91,10 @@ function get_standard_page_list() {
 
 /**
  * @brief Check if page is standard page
- * 
+ *
  * This function checks if $_REQUEST['pagename'] is
  * a defined $standardpages
- * 
+ *
  * @param string $pagetitle Title of the actual page
  * @return bool
  */
@@ -107,12 +107,12 @@ function is_standard_page($pagetitle) {
 			$is_standard_page = true;
 		}
 	}
-	
+
 	return $is_standard_page;
 }
 /**
  * @brief Get the typ of the page
- * 
+ *
  * @param type $pagetitle
  * @return string
  */
diff --git a/view/theme/frio/theme.php b/view/theme/frio/theme.php
index a2fde7b25..d8b10c4e3 100644
--- a/view/theme/frio/theme.php
+++ b/view/theme/frio/theme.php
@@ -4,14 +4,14 @@
  * Description: Bootstrap V3 theme. The theme is currently under construction, so it is far from finished. For further information have a look at the <a href="https://github.com/friendica/friendica/tree/develop/view/theme/frio/README.md">ReadMe</a>.
  * Version: V.0.7
  * Author: Rabuzarus <https://friendica.kommune4.de/profile/rabuzarus>
- * 
+ *
  */
 
 $frio = "view/theme/frio";
 
 global $frio;
 
-function frio_init(App &$a) {
+function frio_init(App $a) {
 
 	// disable the events module link in the profile tab
 	$a->theme_events_in_profile = false;
@@ -63,18 +63,18 @@ function frio_uninstall() {
 	logger("uninstalled theme frio");
 }
 /**
- * @brief Replace friendica photo links
- * 
+ * @brief Replace friendica photo links hook
+ *
  *  This function does replace the links to photos
  *  of other friendica users. Original the photos are
  *  linked to the photo page. Now they will linked directly
  *  to the photo file. This function is nessesary to use colorbox
  *  in the network stream
- * 
- * @param App $a
+ *
+ * @param App $a Unused but required by hook definition
  * @param array $body_info The item and its html output
  */
-function frio_item_photo_links(&$a, &$body_info) {
+function frio_item_photo_links(App $a, &$body_info) {
 	require_once('include/Photo.php');
 
 	$phototypes = Photo::supportedTypes();
@@ -104,16 +104,16 @@ function frio_item_photo_links(&$a, &$body_info) {
 }
 
 /**
- * @brief Replace links of the item_photo_menu
- * 
+ * @brief Replace links of the item_photo_menu hook
+ *
  *  This function replaces the original poke and the message links
  *  to call the addToModal javascript function so this pages can
  *  be loaded in a bootstrap modal
- * 
- * @param app $a The app data
+ *
+ * @param App $a Unused but required by the hook definition
  * @param array $arr Contains item data and the original photo_menu
  */
-function frio_item_photo_menu($a, &$arr){
+function frio_item_photo_menu(App $a, &$arr) {
 
 	foreach($arr["menu"] as $k =>$v) {
 		if(strpos($v,'poke/?f=&c=') === 0 || strpos($v,'message/new/') === 0) {
@@ -126,17 +126,17 @@ function frio_item_photo_menu($a, &$arr){
 
 /**
  * @brief Replace links of the contact_photo_menu
- * 
+ *
  *  This function replaces the original poke and the message links
  *  to call the addToModal javascript function so this pages can
  *  be loaded in a bootstrap modal
  *  Additionally the profile, status and photo page links  will be changed
  *  to don't open in a new tab if the contact is a friendica contact.
- * 
+ *
  * @param app $a The app data
  * @param array $args Contains contact data and the original photo_menu
  */
-function frio_contact_photo_menu($a, &$args){
+function frio_contact_photo_menu(App $a, &$args){
 
 	$pokelink = "";
 	$pmlink = "";
@@ -152,7 +152,7 @@ function frio_contact_photo_menu($a, &$args){
 	// friendicas "magic-link" which indicates a friendica user on froreign
 	// friendica servers as remote user or visitor
 	//
-	// The value for opening in a new tab is e.g. when 
+	// The value for opening in a new tab is e.g. when
 	// $args["menu"]["status"][2] is true. If the value of the [2] key is true
 	// and if it's a friendica contact we set it to false
 	foreach($args["menu"] as $k =>$v) {
@@ -176,15 +176,15 @@ function frio_contact_photo_menu($a, &$args){
 
 /**
  * @brief Construct remote nav menu
- * 
+ *
  *  It creates a remote baseurl form $_SESSION for remote users and friendica
- *  visitors. This url will be added to some of the nav links. With this behaviour 
+ *  visitors. This url will be added to some of the nav links. With this behaviour
  *  the user will come back to her/his own pages on his/her friendica server.
  *  Not all possible links are available (notifications, administrator, manage,
  *  notes aren't available because we have no way the check remote permissions)..
  *  Some links will point to the local pages because the user would expect
  *  local page (these pages are: search, community, help, apps, directory).
- * 
+ *
  * @param app $a The App class
  * @param array $nav The original nav menu
  */
@@ -196,11 +196,11 @@ function frio_remote_nav($a,&$nav) {
 
 	// split up the url in it's parts (protocol,domain/directory, /profile/, nickname
 	// I'm not familiar with regex, so someone might find a better solutionen
-	// 
+	//
 	// E.g $homelink = 'https://friendica.domain.com/profile/mickey' should result in an array
 	// with 0 => 'https://friendica.domain.com/profile/mickey' 1 => 'https://',
 	// 2 => 'friendica.domain.com' 3 => '/profile/' 4 => 'mickey'
-	// 
+	//
 	//$server_url = preg_match('/^(https?:\/\/.*?)\/profile\//2', $homelink);
 	preg_match('/^(https?:\/\/)?(.*?)(\/profile\/)(.*)/', $homelink, $url_parts);
 
@@ -263,14 +263,14 @@ function frio_remote_nav($a,&$nav) {
 }
 /**
  * @brief: Search for contacts
- * 
+ *
  * This function search for a users contacts. The code is copied from contact search
  * in /mod/contacts.php. With this function the contacts will permitted to acl_lookup()
- * and can grabbed as json. For this we use the type="r". This is usful to to let js 
+ * and can grabbed as json. For this we use the type="r". This is usful to to let js
  * grab the contact data.
  * We use this to give the data to textcomplete and have a filter function at the
  * contact page.
- * 
+ *
  * @param App $a The app data @TODO Unused
  * @param array $results The array with the originals from acl_lookup()
  */
diff --git a/view/theme/frost-mobile/theme.php b/view/theme/frost-mobile/theme.php
index 4ca592f4c..7e4262cb6 100644
--- a/view/theme/frost-mobile/theme.php
+++ b/view/theme/frost-mobile/theme.php
@@ -9,7 +9,7 @@
  * Maintainer: Zach P <techcity@f.shmuz.in>
  */
 
-function frost_mobile_init(App &$a) {
+function frost_mobile_init(App $a) {
 	$a->sourcename = 'Friendica mobile web';
 	$a->videowidth = 250;
 	$a->videoheight = 200;
@@ -18,7 +18,7 @@ function frost_mobile_init(App &$a) {
 	set_template_engine($a, 'smarty3');
 }
 
-function frost_mobile_content_loaded(App &$a) {
+function frost_mobile_content_loaded(App $a) {
 
 	// I could do this in style.php, but by having the CSS in a file the browser will cache it,
 	// making pages load faster
diff --git a/view/theme/frost/theme.php b/view/theme/frost/theme.php
index 7746109e5..4c22f0a11 100644
--- a/view/theme/frost/theme.php
+++ b/view/theme/frost/theme.php
@@ -9,14 +9,14 @@
  * Maintainer: Zach P <techcity@f.shmuz.in>
  */
 
-function frost_init(App &$a) {
+function frost_init(App $a) {
 	$a->videowidth = 400;
 	$a->videoheight = 330;
 	$a->theme_thread_allow = false;
 	set_template_engine($a, 'smarty3');
 }
 
-function frost_content_loaded(App &$a) {
+function frost_content_loaded(App $a) {
 
 	// I could do this in style.php, but by having the CSS in a file the browser will cache it,
 	// making pages load faster
@@ -43,7 +43,7 @@ function frost_uninstall() {
 	logger("uninstalled theme frost");
 }
 
-function frost_item_photo_links(&$a, &$body_info) {
+function frost_item_photo_links(App $a, &$body_info) {
 	require_once('include/Photo.php');
 	$phototypes = Photo::supportedTypes();
 
@@ -68,7 +68,7 @@ function frost_item_photo_links(&$a, &$body_info) {
 			$body_info['html'] = str_replace($link, $newlink, $body_info['html']);
 
 		}
-		
+
 		$p = bb_find_open_close($body_info['html'], "<a", ">", $occurence);
 	}
 }
diff --git a/view/theme/quattro/config.php b/view/theme/quattro/config.php
index 6c80afdc2..5af58a18d 100644
--- a/view/theme/quattro/config.php
+++ b/view/theme/quattro/config.php
@@ -3,7 +3,7 @@
  * Theme settings
  */
 
-function theme_content(App &$a){
+function theme_content(App $a) {
 	if (!local_user()) {
 		return;
 	}
@@ -16,7 +16,7 @@ function theme_content(App &$a){
 	return quattro_form($a,$align, $color, $tfs, $pfs);
 }
 
-function theme_post(App &$a){
+function theme_post(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -29,7 +29,7 @@ function theme_post(App &$a){
 	}
 }
 
-function theme_admin(App &$a){
+function theme_admin(App $a) {
 	$align = get_config('quattro', 'align' );
 	$color = get_config('quattro', 'color' );
 	$tfs = get_config("quattro","tfs");
@@ -38,7 +38,7 @@ function theme_admin(App &$a){
 	return quattro_form($a,$align, $color, $tfs, $pfs);
 }
 
-function theme_admin_post(App &$a){
+function theme_admin_post(App $a) {
 	if (isset($_POST['quattro-settings-submit'])){
 		set_config('quattro', 'align', $_POST['quattro_align']);
 		set_config('quattro', 'color', $_POST['quattro_color']);
@@ -48,7 +48,7 @@ function theme_admin_post(App &$a){
 }
 
 /// @TODO $a is no longer used here
-function quattro_form(App &$a, $align, $color, $tfs, $pfs){
+function quattro_form(App $a, $align, $color, $tfs, $pfs) {
 	$colors = array(
 		"dark"  => "Quattro",
 		"lilac" => "Lilac",
diff --git a/view/theme/quattro/theme.php b/view/theme/quattro/theme.php
index ae8f4f906..fc908522a 100644
--- a/view/theme/quattro/theme.php
+++ b/view/theme/quattro/theme.php
@@ -7,7 +7,7 @@
  * Maintainer: Tobias <https://diekershoff.homeunix.net/friendica/profile/tobias>
  */
 
-function quattro_init(App &$a) {
+function quattro_init(App $a) {
 	$a->page['htmlhead'] .= '<script src="'.App::get_baseurl().'/view/theme/quattro/tinycon.min.js"></script>';
 	$a->page['htmlhead'] .= '<script src="'.App::get_baseurl().'/view/theme/quattro/js/quattro.js"></script>';;
 }
diff --git a/view/theme/smoothly/theme.php b/view/theme/smoothly/theme.php
index 32c48fffa..7e8744f0d 100644
--- a/view/theme/smoothly/theme.php
+++ b/view/theme/smoothly/theme.php
@@ -10,7 +10,7 @@
  * Screenshot: <a href="screenshot.png">Screenshot</a>
  */
 
-function smoothly_init(App &$a) {
+function smoothly_init(App $a) {
 	set_template_engine($a, 'smarty3');
 
 	$cssFile = null;
@@ -20,7 +20,7 @@ $a->page['htmlhead'] .= <<< EOT
 
 <script>
 function insertFormatting(comment,BBcode,id) {
-	
+
 		var tmpStr = $("#comment-edit-text-" + id).val();
 		if(tmpStr == comment) {
 			tmpStr = "";
@@ -36,7 +36,7 @@ function insertFormatting(comment,BBcode,id) {
 		selected = document.selection.createRange();
 		if (BBcode == "url"){
 			selected.text = "["+BBcode+"]" + "http://" +  selected.text + "[/"+BBcode+"]";
-			} else			
+			} else
 		selected.text = "["+BBcode+"]" + selected.text + "[/"+BBcode+"]";
 	} else if (textarea.selectionStart || textarea.selectionStart == "0") {
 		var start = textarea.selectionStart;
diff --git a/view/theme/vier/config.php b/view/theme/vier/config.php
index 532649890..9fd19e8ab 100644
--- a/view/theme/vier/config.php
+++ b/view/theme/vier/config.php
@@ -5,7 +5,7 @@
 
 
 
-function theme_content(App &$a){
+function theme_content(App $a) {
 	if (!local_user()) {
 		return;
 	}
@@ -35,7 +35,7 @@ function theme_content(App &$a){
 			$show_services, $show_friends, $show_lastusers);
 }
 
-function theme_post(App &$a){
+function theme_post(App $a) {
 	if (! local_user()) {
 		return;
 	}
@@ -52,7 +52,7 @@ function theme_post(App &$a){
 }
 
 
-function theme_admin(App &$a){
+function theme_admin(App $a) {
 
 	if (!function_exists('get_vier_config'))
 		return;
@@ -81,7 +81,7 @@ function theme_admin(App &$a){
 	return $o;
 }
 
-function theme_admin_post(App &$a){
+function theme_admin_post(App $a) {
 	if (isset($_POST['vier-settings-submit'])){
 		set_config('vier', 'style', $_POST['vier_style']);
 		set_config('vier', 'show_pages', $_POST['vier_show_pages']);
@@ -95,7 +95,7 @@ function theme_admin_post(App &$a){
 }
 
 /// @TODO $a is no longer used
-function vier_form(&$a, $style, $show_pages, $show_profiles, $show_helpers, $show_services, $show_friends, $show_lastusers){
+function vier_form(App $a, $style, $show_pages, $show_profiles, $show_helpers, $show_services, $show_friends, $show_lastusers) {
 	$styles = array(
 		"plus"=>"Plus",
 		"breathe"=>"Breathe",
diff --git a/view/theme/vier/theme.php b/view/theme/vier/theme.php
index 8be91220a..12c588a24 100644
--- a/view/theme/vier/theme.php
+++ b/view/theme/vier/theme.php
@@ -13,7 +13,7 @@ require_once("include/plugin.php");
 require_once("include/socgraph.php");
 require_once("mod/proxy.php");
 
-function vier_init(App &$a) {
+function vier_init(App $a) {
 
 	$a->theme_events_in_profile = false;