Quick fix PHP notices in various files

- Remove unused variables
- Fix variable name typos
- Use x() and defaults() to fix undefined index
- Add back uninitialized variables

mod/display.php

@@ -201,8 +201,9 @@ function display_content(App $a, $update = false, $update_uid = 0) {
 
 	if ($update) {
 		$item_id = $_REQUEST['item_id'];
-		$item = dba::select('item', ['uid'], ['id' => $item_id], ['limit' => 1]);
+		$item = dba::select('item', ['uid', 'parent'], ['id' => $item_id], ['limit' => 1]);
 		$a->profile = array('uid' => intval($item['uid']), 'profile_uid' => intval($item['uid']));
+		$item_parent = $item['parent'];
 	} else {
 		$item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 
@@ -260,7 +261,7 @@ function display_content(App $a, $update = false, $update_uid = 0) {
 
 	$contact_id = 0;
 
-	if (is_array($_SESSION['remote'])) {
+	if (x($_SESSION, 'remote') && is_array($_SESSION['remote'])) {
 		foreach ($_SESSION['remote'] as $v) {
 			if ($v['uid'] == $a->profile['uid']) {
 				$contact_id = $v['cid'];
@@ -294,7 +295,7 @@ function display_content(App $a, $update = false, $update_uid = 0) {
 	}
 	$is_owner = (local_user() && (in_array($a->profile['profile_uid'], [local_user(), 0])) ? true : false);
 
-	if ($a->profile['hidewall'] && !$is_owner && !$remote_contact) {
+	if (x($a->profile, 'hidewall') && !$is_owner && !$remote_contact) {
 		notice(t('Access to this profile has been restricted.') . EOL);
 		return;
 	}

mod/nogroup.php

@@ -41,28 +41,25 @@ function nogroup_content(App $a)
 			$contact_details = Contact::getDetailsByURL($rr['url'], local_user(), $rr);
 
 			$contacts[] = array(
-				'img_hover' => sprintf(t('Visit %s\'s profile [%s]'), $contact_details['name'], $rr['url']),
+				'img_hover' => t('Visit %s\'s profile [%s]', $contact_details['name'], $rr['url']),
 				'edit_hover' => t('Edit contact'),
 				'photo_menu' => Contact::photoMenu($rr),
 				'id' => $rr['id'],
-				'alt_text' => $alt_text,
-				'dir_icon' => $dir_icon,
 				'thumb' => proxy_url($contact_details['thumb'], false, PROXY_SIZE_THUMB),
 				'name' => $contact_details['name'],
 				'username' => $contact_details['name'],
 				'details'       => $contact_details['location'],
 				'tags'          => $contact_details['keywords'],
 				'about'         => $contact_details['about'],
-				'sparkle' => $sparkle,
 				'itemurl' => (($contact_details['addr'] != "") ? $contact_details['addr'] : $rr['url']),
 				'url' => $rr['url'],
-				'network' => network_to_name($rr['network'], $url),
+				'network' => network_to_name($rr['network'], $rr['url']),
 			);
 		}
 	}
 
 	$tpl = get_markup_template("nogroup-template.tpl");
-	$o .= replace_macros(
+	$o = replace_macros(
 		$tpl,
 		array(
 		'$header' => t('Contacts who are not members of a group'),

mod/ping.php

@@ -164,8 +164,8 @@ function ping_init(App $a)
 
 			if (intval(Feature::isEnabled(local_user(), 'forumlist_widget'))) {
 				$forum_counts = ForumManager::countUnseenItems();
-				if (DBM::is_result($forums_counts)) {
-					foreach ($forums_counts as $forum_count) {
+				if (DBM::is_result($forum_counts)) {
+					foreach ($forum_counts as $forum_count) {
 						if ($forum_count['count'] > 0) {
 							$forums_unseen[] = $forum_count;
 						}
@@ -490,8 +490,10 @@ function ping_get_notifications($uid)
 
 			$notification["href"] = System::baseUrl() . "/notify/view/" . $notification["id"];
 
-			if ($notification["visible"] && !$notification["spam"]
-				&& !$notification["deleted"] && !is_array($result[$notification["parent"]])
+			if ($notification["visible"]
+				&& !$notification["spam"]
+				&& !$notification["deleted"]
+				&& !(x($result, $notification["parent"]) && is_array($result[$notification["parent"]]))
 			) {
 				// Should we condense the notifications or show them all?
 				if (PConfig::get(local_user(), 'system', 'detailed_notif')) {

mod/videos.php

@@ -7,11 +7,11 @@ use Friendica\Core\Worker;
 use Friendica\Database\DBM;
 use Friendica\Model\Contact;
 
-require_once('include/items.php');
-require_once('include/acl_selectors.php');
-require_once('include/bbcode.php');
-require_once('include/security.php');
-require_once('include/redir.php');
+require_once 'include/items.php';
+require_once 'include/acl_selectors.php';
+require_once 'include/bbcode.php';
+require_once 'include/security.php';
+require_once 'include/redir.php';
 
 function videos_init(App $a) {
 
@@ -44,12 +44,12 @@ function videos_init(App $a) {
 
 		$tpl = get_markup_template("vcard-widget.tpl");
 
-		$vcard_widget .= replace_macros($tpl, array(
+		$vcard_widget = replace_macros($tpl, array(
 			'$name' => $profile['name'],
 			'$photo' => $profile['photo'],
-			'$addr' => (($profile['addr'] != "") ? $profile['addr'] : ""),
+			'$addr' => defaults($profile, 'addr', ''),
 			'$account_type' => $account_type,
-			'$pdesc' => (($profile['pdesc'] != "") ? $profile['pdesc'] : ""),
+			'$pdesc' => defaults($profile, 'pdesc', ''),
 		));
 
 
@@ -280,8 +280,9 @@ function videos_content(App $a) {
 		}
 	}
 
-	// perhaps they're visiting - but not a community page, so they wouldn't have write access
+	$groups = [];
 
+	// perhaps they're visiting - but not a community page, so they wouldn't have write access
 	if(remote_user() && (! $visitor)) {
 		$contact_id = 0;
 		if(is_array($_SESSION['remote'])) {
@@ -317,7 +318,7 @@ function videos_content(App $a) {
 		return;
 	}
 
-	$sql_extra = permissions_sql($owner_uid,$remote_contact,$groups);
+	$sql_extra = permissions_sql($owner_uid, $remote_contact, $groups);
 
 	$o = "";