diff --git a/include/bbcode.php b/include/bbcode.php
index b445fd01b0..749a7c5946 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -376,7 +376,6 @@ function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 	return $string;
 }
 
-if (! function_exists('bb_extract_images')) {
 function bb_extract_images($body) {
 
 	$saved_image = array();
@@ -418,9 +417,8 @@ function bb_extract_images($body) {
 	$new_body = $new_body . $orig_body;
 
 	return array('body' => $new_body, 'images' => $saved_image);
-}}
+}
 
-if (! function_exists('bb_replace_images')) {
 function bb_replace_images($body, $images) {
 
 	$newbody = $body;
@@ -435,7 +433,7 @@ function bb_replace_images($body, $images) {
 	}
 
 	return $newbody;
-}}
+}
 
 function bb_ShareAttributes($share, $simplehtml) {
 	$attributes = $share[2];
diff --git a/include/conversation.php b/include/conversation.php
index 6dd1a473ec..5d64bcef76 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -15,12 +15,6 @@ use Friendica\Object\Post;
 require_once "include/bbcode.php";
 require_once "include/acl_selectors.php";
 
-/*
- * Note: the code in 'item_extract_images' and 'item_redir_and_replace_images'
- * is identical to the code in mod/message.php for 'item_extract_images' and
- * 'item_redir_and_replace_images'
- */
-if (! function_exists('item_extract_images')) {
 function item_extract_images($body) {
 
 	$saved_image = array();
@@ -62,9 +56,8 @@ function item_extract_images($body) {
 	$new_body = $new_body . $orig_body;
 
 	return array('body' => $new_body, 'images' => $saved_image);
-}}
+}
 
-if (! function_exists('item_redir_and_replace_images')) {
 function item_redir_and_replace_images($body, $images, $cid) {
 
 	$origbody = $body;
@@ -104,7 +97,7 @@ function item_redir_and_replace_images($body, $images, $cid) {
 		$cnt++;
 	}
 	return $newbody;
-}}
+}
 
 /**
  * Render actions localized
@@ -486,7 +479,6 @@ function item_condition() {
 	return "`item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`";
 }
 
-if (!function_exists('conversation')) {
 /**
  * "Render" a conversation or list of items for HTML display.
  * There are two major forms of display:
@@ -906,7 +898,7 @@ function conversation(App $a, $items, $mode, $update, $preview = false) {
 	));
 
 	return $o;
-}}
+}
 
 function best_link_url($item, &$sparkle, $url = '') {
 
@@ -1036,7 +1028,6 @@ function item_photo_menu($item) {
 	return $o;
 }
 
-if (! function_exists('builtin_activity_puller')) {
 /**
  * @brief Checks item to see if it is one of the builtin activities (like/dislike, event attendance, consensus items, etc.)
  * Increments the count of each matching activity and adds a link to the author as needed.
@@ -1112,9 +1103,8 @@ function builtin_activity_puller($item, &$conv_responses) {
 			return;
 		}
 	}
-}}
+}
 
-if (! function_exists('format_like')) {
 /**
  * Format the vote text for a profile item
  * @param int $cnt = number of people who vote the item
@@ -1205,7 +1195,7 @@ function format_like($cnt, array $arr, $type, $id) {
 	$o .= $expanded;
 
 	return $o;
-}}
+}
 
 function status_editor(App $a, $x, $notes_cid = 0, $popup = false) {
 	$o = '';
diff --git a/include/items.php b/include/items.php
index 9f3f4ab30e..3d03f78ca4 100644
--- a/include/items.php
+++ b/include/items.php
@@ -42,7 +42,6 @@ function construct_verb($item) {
  *		The purpose of this function is to apply system message length limits to
  *		imported messages without including any embedded photos in the length
  */
-if (! function_exists('limit_body_size')) {
 function limit_body_size($body) {
 
 //	logger('limit_body_size: start', LOGGER_DEBUG);
@@ -125,7 +124,7 @@ function limit_body_size($body) {
 	} else {
 		return $body;
 	}
-}}
+}
 
 function title_is_body($title, $body) {
 
diff --git a/include/pgettext.php b/include/pgettext.php
index ae1ce009c1..3a89c024d7 100644
--- a/include/pgettext.php
+++ b/include/pgettext.php
@@ -14,7 +14,6 @@ use Friendica\Core\Config;
 
 require_once "include/dba.php";
 
-if (! function_exists('get_browser_language')) {
 /**
  * @brief get the prefered language from the HTTP_ACCEPT_LANGUAGE header
  */
@@ -55,7 +54,7 @@ function get_browser_language() {
 
 	// in case none matches, get the system wide configured language, or fall back to English
 	return Config::get('system', 'language', 'en');
-}}
+}
 
 
 function push_lang($language) {
@@ -93,7 +92,6 @@ function pop_lang() {
 
 // l
 
-if (! function_exists('load_translation_table')) {
 /**
  * load string translation table for alternate language
  *
@@ -118,7 +116,7 @@ function load_translation_table($lang) {
 		include("view/lang/$lang/strings.php");
 	}
 
-}}
+}
 
 /**
  * @brief Return the localized version of the provided string with optional string interpolation
diff --git a/mod/message.php b/mod/message.php
index 7bb17f3906..eba1c9a62c 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -8,6 +8,7 @@ use Friendica\Model\Contact;
 
 require_once 'include/acl_selectors.php';
 require_once 'include/message.php';
+require_once 'include/conversation.php';
 
 function message_init(App $a) {
 
@@ -88,83 +89,6 @@ function message_post(App $a) {
 
 }
 
-// Note: the code in 'item_extract_images' and 'item_redir_and_replace_images'
-// is identical to the code in include/conversation.php
-if (! function_exists('item_extract_images')) {
-function item_extract_images($body) {
-
-	$saved_image = array();
-	$orig_body = $body;
-	$new_body = '';
-
-	$cnt = 0;
-	$img_start = strpos($orig_body, '[img');
-	$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-	$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
-	while(($img_st_close !== false) && ($img_end !== false)) {
-
-		$img_st_close++; // make it point to AFTER the closing bracket
-		$img_end += $img_start;
-
-		if (! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
-			// This is an embedded image
-
-			$saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
-			$new_body = $new_body . substr($orig_body, 0, $img_start) . '[!#saved_image' . $cnt . '#!]';
-
-			$cnt++;
-		} else
-			$new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
-
-		$orig_body = substr($orig_body, $img_end + strlen('[/img]'));
-
-		if ($orig_body === false) // in case the body ends on a closing image tag
-			$orig_body = '';
-
-		$img_start = strpos($orig_body, '[img');
-		$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
-		$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
-	}
-
-	$new_body = $new_body . $orig_body;
-
-	return array('body' => $new_body, 'images' => $saved_image);
-}}
-
-if (! function_exists('item_redir_and_replace_images')) {
-function item_redir_and_replace_images($body, $images, $cid) {
-
-	$origbody = $body;
-	$newbody = '';
-
-	for($i = 0; $i < count($images); $i++) {
-		$search = '/\[url\=(.*?)\]\[!#saved_image' . $i . '#!\]\[\/url\]' . '/is';
-		$replace = '[url=' . System::baseUrl() . '/redir/' . $cid
-		           . '?f=1&url=' . '$1' . '][!#saved_image' . $i . '#!][/url]' ;
-
-		$img_end = strpos($origbody, '[!#saved_image' . $i . '#!][/url]') + strlen('[!#saved_image' . $i . '#!][/url]');
-		$process_part = substr($origbody, 0, $img_end);
-		$origbody = substr($origbody, $img_end);
-
-		$process_part = preg_replace($search, $replace, $process_part);
-		$newbody = $newbody . $process_part;
-	}
-	$newbody = $newbody . $origbody;
-
-	$cnt = 0;
-	foreach ($images as $image) {
-		// We're depending on the property of 'foreach' (specified on the PHP website) that
-		// it loops over the array starting from the first element and going sequentially
-		// to the last element
-		$newbody = str_replace('[!#saved_image' . $cnt . '#!]', '[img]' . $image . '[/img]', $newbody);
-		$cnt++;
-	}
-
-	return $newbody;
-}}
-
-
-
 function message_content(App $a) {
 
 	$o = '';
diff --git a/mod/profile_photo.php b/mod/profile_photo.php
index e12c6e5c64..5b75e654df 100644
--- a/mod/profile_photo.php
+++ b/mod/profile_photo.php
@@ -178,7 +178,6 @@ function profile_photo_post(App $a) {
 }
 
 
-if(! function_exists('profile_photo_content')) {
 function profile_photo_content(App $a) {
 
 	if (! local_user()) {
@@ -285,10 +284,9 @@ function profile_photo_content(App $a) {
 	}
 
 	return; // NOTREACHED
-}}
+}
 
 
-if(! function_exists('profile_photo_crop_ui_head')) {
 function profile_photo_crop_ui_head(App $a, Image $Image) {
 	$max_length = Config::get('system','max_image_length');
 	if (! $max_length) {
@@ -337,5 +335,4 @@ function profile_photo_crop_ui_head(App $a, Image $Image) {
 	$a->page['htmlhead'] .= replace_macros(get_markup_template("crophead.tpl"), array());
 	$a->page['end'] .= replace_macros(get_markup_template("cropend.tpl"), array());
 	return;
-}}
-
+}