php8: fix more warnings

13 files changed, 71 insertions, 68 deletions

diff --git a/Zotlabs/Lib/Activity.php b/Zotlabs/Lib/Activity.php
index b400ffd61..7e6f7d42d 100644
--- a/Zotlabs/Lib/Activity.php
+++ b/Zotlabs/Lib/Activity.php
@@ -646,15 +646,15 @@ class Activity {
 
 		$ret = [];
 
-		if (is_array($item['attachment']) && $item['attachment']) {
+		if (isset($item['attachment'])) {
 			$ptr = $item['attachment'];
 			if (!array_key_exists(0, $ptr)) {
 				$ptr = [$ptr];
 			}
 			foreach ($ptr as $att) {
 				$entry = [];
-				if ($att['type'] === 'PropertyValue') {
-					if (array_key_exists('name', $att) && $att['name']) {
+				if (isset($att['type']) && $att['type'] === 'PropertyValue') {
+					if (isset($att['name'])) {
 						$key = explode('.', $att['name']);
 						if (count($key) === 3 && $key[0] === 'zot') {
 							$entry['cat']     = $key[1];
@@ -674,7 +674,7 @@ class Activity {
 
 		$ret = [];
 
-		if (array_key_exists('attachment', $item) && is_array($item['attachment'])) {
+		if (isset($item['attachment'])) {
 			$ptr = $item['attachment'];
 			if (!array_key_exists(0, $ptr)) {
 				$ptr = [$ptr];
@@ -1600,7 +1600,7 @@ class Activity {
 		$m = parse_url($url);
 		if ($m) {
 			$hostname = $m['host'];
-			$baseurl  = $m['scheme'] . '://' . $m['host'] . (($m['port']) ? ':' . $m['port'] : '');
+			$baseurl  = $m['scheme'] . '://' . $m['host'] . ((isset($m['port'])) ? ':' . $m['port'] : '');
 			$site_url = $m['scheme'] . '://' . $m['host'];
 		}
 
@@ -1791,9 +1791,13 @@ class Activity {
 
 	// sort function width decreasing
 	static function vid_sort($a, $b) {
-		if ($a['width'] === $b['width'])
+		$a_width = $a['width'] ?? 0;
+		$b_width = $b['width'] ?? 0;
+
+		if ($a_width === $b_width)
 			return 0;
-		return (($a['width'] > $b['width']) ? -1 : 1);
+
+		return (($a_width > $b_width) ? -1 : 1);
 	}
 
 	static function create_note($channel, $observer_hash, $act) {
@@ -2673,7 +2677,7 @@ class Activity {
 			}
 		}
 
-		if (!$s['plink']) {
+        if (!(isset($s['plink']) && $s['plink'])) {
 			$s['plink'] = $s['mid'];
 		}
 
@@ -2865,7 +2869,7 @@ class Activity {
 
 			// The $item['item_fetched'] flag is set in fetch_and_store_parents().
 			// In this case we should check against author permissions because sender is not owner.
-			if (perm_is_allowed($channel['channel_id'], (($item['item_fetched']) ? $item['author_xchan'] : $observer_hash), 'send_stream') || $is_sys_channel) {
+			if (perm_is_allowed($channel['channel_id'], ((isset($item['item_fetched']) && $item['item_fetched']) ? $item['author_xchan'] : $observer_hash), 'send_stream') || $is_sys_channel) {
 				$allowed = true;
 			}
 			// TODO: not implemented
diff --git a/Zotlabs/Lib/ActivityStreams.php b/Zotlabs/Lib/ActivityStreams.php
index c0b07bfb5..fc580e9aa 100644
--- a/Zotlabs/Lib/ActivityStreams.php
+++ b/Zotlabs/Lib/ActivityStreams.php
@@ -116,17 +116,17 @@ class ActivityStreams {
 				$this->obj['object'] = $this->get_compound_property($this->obj['object']);
 			}
 
-			if ($this->obj && is_array($this->obj) && $this->obj['actor'])
+			if ($this->obj && is_array($this->obj) && isset($this->obj['actor']))
 				$this->obj['actor'] = $this->get_actor('actor', $this->obj);
-			if ($this->tgt && is_array($this->tgt) && $this->tgt['actor'])
+			if ($this->tgt && is_array($this->tgt) && isset($this->tgt['actor']))
 				$this->tgt['actor'] = $this->get_actor('actor', $this->tgt);
 
 			$this->parent_id = $this->get_property_obj('inReplyTo');
 
-			if ((!$this->parent_id) && is_array($this->obj)) {
+			if ((!$this->parent_id) && is_array($this->obj) && isset($this->obj['inReplyTo'])) {
 				$this->parent_id = $this->obj['inReplyTo'];
 			}
-			if ((!$this->parent_id) && is_array($this->obj)) {
+			if ((!$this->parent_id) && is_array($this->obj) && isset($this->obj['id'])) {
 				$this->parent_id = $this->obj['id'];
 			}
 		}
diff --git a/Zotlabs/Lib/Libzot.php b/Zotlabs/Lib/Libzot.php
index 09ce3a9de..340f844d5 100644
--- a/Zotlabs/Lib/Libzot.php
+++ b/Zotlabs/Lib/Libzot.php
@@ -2926,12 +2926,11 @@ class Libzot {
 		// This is a template - %s will be replaced with the follow_url we discover for the return channel.
 
 		if ($special_channel) {
-			$ret['connect_url'] = (($e['xchan_connpage']) ? $e['xchan_connpage'] : z_root() . '/connect/' . $e['channel_address']);
+			$ret['connect_url'] = $e['xchan_connpage'] ?? z_root() . '/connect/' . $e['channel_address'];
 		}
 
 		// This is a template for our follow url, %s will be replaced with a webbie
-		if (!$ret['follow_url'])
-			$ret['follow_url'] = z_root() . '/follow?f=&url=%s';
+		$ret['follow_url'] = $ret['follow_url'] ?? z_root() . '/follow?f=&url=%s';
 
 		$permissions = get_all_perms($e['channel_id'], $ztarget_hash, false, false);
 
diff --git a/Zotlabs/Lib/System.php b/Zotlabs/Lib/System.php
index 3cc46fbda..087378f16 100644
--- a/Zotlabs/Lib/System.php
+++ b/Zotlabs/Lib/System.php
@@ -16,13 +16,13 @@ class System {
 	}
 
 	static public function get_site_name() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['sitename'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['sitename']))
 			return \App::$config['system']['sitename'];
 		return '';
 	}
 
 	static public function get_project_version() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['hide_version'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['hide_version']))
 			return '';
 		if(is_array(\App::$config) && is_array(\App::$config['system']) && array_key_exists('std_version',\App::$config['system']))
 			return \App::$config['system']['std_version'];
@@ -31,33 +31,33 @@ class System {
 	}
 
 	static public function get_update_version() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['hide_version'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['hide_version']))
 			return '';
 		return DB_UPDATE_VERSION;
 	}
 
 
 	static public function get_notify_icon() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['email_notify_icon_url'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['email_notify_icon_url']))
 			return \App::$config['system']['email_notify_icon_url'];
 		return z_root() . DEFAULT_NOTIFY_ICON;
 	}
 
 	static public function get_site_icon() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['site_icon_url'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['site_icon_url']))
 			return \App::$config['system']['site_icon_url'];
 		return z_root() . DEFAULT_PLATFORM_ICON ;
 	}
 
 
 	static public function get_project_link() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['project_link'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['project_link']))
 			return \App::$config['system']['project_link'];
 		return 'https://hubzilla.org';
 	}
 
 	static public function get_project_srclink() {
-		if(is_array(\App::$config) && is_array(\App::$config['system']) && \App::$config['system']['project_srclink'])
+		if(is_array(\App::$config) && is_array(\App::$config['system']) && isset(\App::$config['system']['project_srclink']))
 			return \App::$config['system']['project_srclink'];
 		return 'https://framagit.org/hubzilla/core.git';
 	}
@@ -68,7 +68,7 @@ class System {
 
 
 	static public function get_zot_revision() {
-		$x = [ 'revision' => ZOT_REVISION ]; 
+		$x = [ 'revision' => ZOT_REVISION ];
 		call_hooks('zot_revision',$x);
 		return $x['revision'];
 	}
diff --git a/Zotlabs/Lib/ThreadItem.php b/Zotlabs/Lib/ThreadItem.php
index 20cbff4fc..0a7e40e0e 100644
--- a/Zotlabs/Lib/ThreadItem.php
+++ b/Zotlabs/Lib/ThreadItem.php
@@ -180,7 +180,7 @@ class ThreadItem {
 			$dropping = false;
 		}
 
-
+		$drop = [];
 		if($dropping) {
 			$drop = array(
 				'dropping' => $dropping,
@@ -309,6 +309,10 @@ class ThreadItem {
 		if(($item['obj_type'] === ACTIVITY_OBJ_EVENT) && $conv->get_profile_owner() == local_channel())
 			$has_event = true;
 
+		$like = [];
+		$dislike = [];
+		$reply_to = [];
+
 		if($this->is_commentable() && $observer) {
 			$like = array( t("I like this \x28toggle\x29"), t("like"));
 			$dislike = array( t("I don't like this \x28toggle\x29"), t("dislike"));
diff --git a/Zotlabs/Module/Sse_bs.php b/Zotlabs/Module/Sse_bs.php
index 619050aaf..3a4e4e09e 100644
--- a/Zotlabs/Module/Sse_bs.php
+++ b/Zotlabs/Module/Sse_bs.php
@@ -580,12 +580,12 @@ class Sse_bs extends Controller {
 
 					$forums[$x]['notify_link'] = z_root() . '/network/?f=&pf=1&unseen=1&cid=' . $forums[$x]['abook_id'];
 					$forums[$x]['name'] = $forums[$x]['xchan_name'];
-					$forums[$x]['addr'] = $forums[$x]['xchan_addr'];
+					$forums[$x]['addr'] = $forums[$x]['xchan_addr'] ?? $forums[$x]['xchan_url'];
 					$forums[$x]['url'] = $forums[$x]['xchan_url'];
 					$forums[$x]['photo'] = $forums[$x]['xchan_photo_s'];
 					$forums[$x]['unseen'] = count($b64mids);
-					$forums[$x]['private_forum'] = (($forums[$x]['private_forum']) ? 'lock' : '');
-					$forums[$x]['message'] = (($forums[$x]['private_forum']) ? t('Private forum') : t('Public forum'));
+					$forums[$x]['private_forum'] = ((isset($forums[$x]['private_forum']) && $forums[$x]['private_forum']) ? 'lock' : '');
+					$forums[$x]['message'] = ((isset($forums[$x]['private_forum']) && $forums[$x]['private_forum']) ? t('Private forum') : t('Public forum'));
 					$forums[$x]['mids'] = json_encode($b64mids);
 
 					unset($forums[$x]['abook_id']);
diff --git a/Zotlabs/Widget/Notifications.php b/Zotlabs/Widget/Notifications.php
index 0e02d5cc1..a4e632a9f 100644
--- a/Zotlabs/Widget/Notifications.php
+++ b/Zotlabs/Widget/Notifications.php
@@ -13,6 +13,7 @@ class Notifications {
 	function widget($arr) {
 
 		$channel = \App::get_channel();
+		$notifications = [];
 
 		if(local_channel()) {
 			$notifications[] = [
diff --git a/include/conversation.php b/include/conversation.php
index fe001a79d..7df7b62c2 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -102,28 +102,29 @@ function localize_item(&$item){
 			logger('localize_item: failed to decode object: ' . print_r($item['obj'],true));
 		}
 
-		if(is_array($obj['author']) && $obj['author']['link'])
+		if(isset($obj['author']) && isset($obj['author']['link']))
 			$author_link = get_rel_link($obj['author']['link'],'alternate');
-		elseif(is_array($obj['actor']) && $obj['actor']['url'])
+		elseif(isset($obj['actor']) && isset($obj['actor']['url']))
 			$author_link = ((is_array($obj['actor']['url'])) ? $obj['actor']['url'][0]['href'] : $obj['actor']['url']);
 		elseif (is_string($obj['actor']))
 			$author_link = $obj['actor'];
 		else
 			$author_link = '';
 
-		$author_name = (($obj['author'] && $obj['author']['name']) ? $obj['author']['name'] : '');
+		$author_name = $obj['author']['name'] ?? '';
 
 		if(!$author_name)
-			$author_name = ((is_array($obj['actor']) && $obj['actor']['name']) ? $obj['actor']['name'] : '');
+			$author_name = $obj['actor']['name'] ?? '';
 
 		if(!$author_name && is_string($obj['actor'])) {
 			$cached_actor = Activity::get_cached_actor($obj['actor']);
 			if (is_array($cached_actor)) {
-				$author_name = (($cached_actor['name']) ? $cached_actor['name'] : $cached_actor['preferredUsername']);
+				$author_name = $cached_actor['name'] ?? $cached_actor['preferredUsername'];
 			}
 		}
 
-		if(is_array($obj['link']))
+		$item_url = '';
+		if(isset($obj['link']) && is_array($obj['link']))
 			$item_url = get_rel_link($obj['link'],'alternate');
 
 		if(!$item_url)
@@ -1055,14 +1056,14 @@ function author_is_pmable($xchan, $abook) {
 function thread_author_menu($item, $mode = '') {
 
 	$menu = [];
-
+	$channel = [];
 	$local_channel = local_channel();
 
 	if($local_channel) {
 		if(! count(App::$contacts))
 			load_contact_links($local_channel);
+
 		$channel = App::get_channel();
-		$channel_hash = (($channel) ? $channel['channel_hash'] : '');
 	}
 
 	$profile_link = chanlink_hash($item['author_xchan']);
@@ -1070,7 +1071,7 @@ function thread_author_menu($item, $mode = '') {
 
 	$follow_url = '';
 
-	if($channel['channel_hash'] !== $item['author_xchan']) {
+	if(isset($channel['channel_hash']) && $channel['channel_hash'] !== $item['author_xchan']) {
 		if(App::$contacts && array_key_exists($item['author_xchan'],App::$contacts)) {
 			$contact = App::$contacts[$item['author_xchan']];
 		}
diff --git a/include/event.php b/include/event.php
index f62c22792..0805bd2fe 100644
--- a/include/event.php
+++ b/include/event.php
@@ -28,7 +28,7 @@ function format_event_html($ev) {
 	if(! ((is_array($ev)) && count($ev)))
 		return '';
 
-	$tz = (($ev['timezone']) ? $ev['timezone'] : 'UTC');
+	$tz = $ev['timezone'] ?? 'UTC';
 
 	$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8:01 AM
 
@@ -39,9 +39,9 @@ function format_event_html($ev) {
 	$o .= '<div class="event-title"><h3><i class="fa fa-calendar"></i>&nbsp;' . zidify_links(smilies(bbcode($ev['summary']))) .  '</h3></div>' . "\r\n";
 
 	$o .= '<div class="event-start"><span class="event-label">' . t('Starts:') . '</span>&nbsp;<span class="dtstart" title="'
-		. datetime_convert('UTC', 'UTC', $ev['dtstart'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
+		. datetime_convert('UTC', 'UTC', $ev['dtstart'], ((isset($ev['adjust']) && $ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
 		. '" >'
-		. (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
+		. ((isset($ev['adjust']) && $ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
 			$ev['dtstart'] , $bd_format ))
 			:  day_translate(datetime_convert('UTC', 'UTC',
 			$ev['dtstart'] , $bd_format)))
@@ -49,9 +49,9 @@ function format_event_html($ev) {
 
 	if(! $ev['nofinish'])
 		$o .= '<div class="event-end" ><span class="event-label">' . t('Finishes:') . '</span>&nbsp;<span class="dtend" title="'
-			. datetime_convert('UTC','UTC',$ev['dtend'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
+			. datetime_convert('UTC','UTC',$ev['dtend'], ((isset($ev['adjust']) && $ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
 			. '" >'
-			. (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
+			. ((isset($ev['adjust']) && $ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
 				$ev['dtend'] , $bd_format ))
 				:  day_translate(datetime_convert('UTC', 'UTC',
 				$ev['dtend'] , $bd_format )))
@@ -59,7 +59,7 @@ function format_event_html($ev) {
 
 	$o .= '<div class="event-description">' . zidify_links(smilies(bbcode($ev['description']))) .  '</div>' . "\r\n";
 
-	if(strlen($ev['location']))
+	if(isset($ev['location']) && $ev['location'])
 		$o .= '<div class="event-location"><span class="event-label"> ' . t('Location:') . '</span>&nbsp;<span class="location">'
 			. zidify_links(smilies(bbcode($ev['location'])))
 			. '</span></div>' . "\r\n";
diff --git a/include/feedutils.php b/include/feedutils.php
index 734018922..33bacc2bb 100644
--- a/include/feedutils.php
+++ b/include/feedutils.php
@@ -270,18 +270,17 @@ function get_atom_author($feed, $item) {
 
 	$found_author = $item->get_author();
 	if($found_author) {
-		/// @FIXME $rawauthor is undefined here
+		$rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
+		hz_syslog('rawauthor: ' . print_r($rawauthor, true));
+
 		if($rawauthor) {
-			if($rawauthor[0]['child'][NAMESPACE_POCO]['displayName'][0]['data'])
+			if(isset($rawauthor[0]['child'][NAMESPACE_POCO]['displayName'][0]['data']))
 				$author['full_name'] = unxmlify($rawauthor[0]['child'][NAMESPACE_POCO]['displayName'][0]['data']);
 		}
+
 		$author['author_name'] = unxmlify($found_author->get_name());
 		$author['author_link'] = unxmlify($found_author->get_link());
 		$author['author_is_feed'] = false;
-
-		$rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
-		//logger('rawauthor: ' . print_r($rawauthor, true));
-
 	}
 	else {
 		$author['author_name'] = unxmlify($feed->get_title());
@@ -497,6 +496,7 @@ function get_atom_elements($feed, $item) {
 		$res['verb'] = unxmlify($rawverb[0]['data']);
 	}
 
+	$ostatus_conversation = '';
 	$rawcnv = $item->get_item_tags(NAMESPACE_OSTATUS, 'conversation');
 	if($rawcnv) {
 		// new style
@@ -1434,9 +1434,9 @@ function consume_feed($xml, $importer, &$contact, $pass = 0) {
 
 				if($author['author_link'] != $contact['xchan_url']) {
 					$name = '';
-					if($author['full_name']) {
+					if(isset($author['full_name'])) {
 						$name = $author['full_name'];
-						if($author['author_name'])
+						if(isset($author['author_name']))
 							$name .= ' (' . $author['author_name'] . ')';
 					}
 					else {
@@ -1468,8 +1468,8 @@ function consume_feed($xml, $importer, &$contact, $pass = 0) {
 				// Update content if 'updated' changes
 
 				if($r) {
-					if(activity_match($datarray['verb'],ACTIVITY_DELETE)
-						&& $datarray['author_xchan'] === $r[0]['author_xchan']) {
+					if(isset($datarray['verb']) && activity_match($datarray['verb'], ACTIVITY_DELETE)
+						&& isset($datarray['author_xchan']) && $datarray['author_xchan'] === $r[0]['author_xchan']) {
 						if(! intval($r[0]['item_deleted'])) {
 							logger('deleting item ' . $r[0]['id'] . ' mid=' . $datarray['mid'], LOGGER_DEBUG);
 							drop_item($r[0]['id'],false);
@@ -1498,11 +1498,11 @@ function consume_feed($xml, $importer, &$contact, $pass = 0) {
 				$datarray['uid'] = $importer['channel_id'];
 				$datarray['aid'] = $importer['channel_account_id'];
 
-				if(! link_compare($author['owner_link'], $contact['xchan_url'])) {
+				if(isset($author['owner_link']) && !link_compare($author['owner_link'], $contact['xchan_url'])) {
 					logger('Correcting item owner.', LOGGER_DEBUG);
-					$author['owner_name']   = $contact['name'];
-					$author['owner_link']   = $contact['url'];
-					$author['owner_avatar'] = $contact['thumb'];
+					$author['owner_name']   = $contact['xchan_name'];
+					$author['owner_link']   = $contact['xchan_url'];
+					$author['owner_avatar'] = $contact['xchan_photo_m'];
 				}
 
 				if($importer['channel_system']) {
diff --git a/include/items.php b/include/items.php
index d4c27ab28..c8b032806 100644
--- a/include/items.php
+++ b/include/items.php
@@ -1163,8 +1163,7 @@ function encode_item($item,$mirror = false,$zap_compat = false) {
 	if($item['comments_closed'] > NULL_DATE)
 		$x['comments_closed'] = $item['comments_closed'];
 
-	$x['public_scope']    = $scope;
-
+	$x['public_scope'] = $item['public_policy'];
 	$x['comment_scope'] = $item['comment_policy'];
 
 	if(! empty($item['term']))
@@ -2432,17 +2431,14 @@ function send_status_notifications($post_id,$item) {
 		return;
 
 	// my own post - no notification needed
-	if($item['author_xchan'] === $r[0]['channel_hash'])
+	if(isset($item['author_xchan']) && $item['author_xchan'] === $r[0]['channel_hash'])
 		return;
 
-
 	// I'm the owner - notify me
-
-	if($item['owner_hash'] === $r[0]['channel_hash'])
+	if(isset($item['owner_hash']) && $item['owner_hash'] === $r[0]['channel_hash'])
 		$notify = true;
 
 	// Was I involved in this conversation?
-
 	$x = q("select * from item where parent_mid = '%s' and uid = %d",
 		dbesc($item['parent_mid']),
 		intval($item['uid'])
diff --git a/include/nav.php b/include/nav.php
index 0097a206b..65d5a3ef6 100644
--- a/include/nav.php
+++ b/include/nav.php
@@ -416,9 +416,6 @@ function channel_apps($is_owner = false, $nickname = null) {
 
 	$has_webpages = (($r) ? true : false);
 
-	if (x($_GET, 'tab'))
-		$tab = notags(trim($_GET['tab']));
-
 	$url = z_root() . '/channel/' . $nickname;
 	$pr  = z_root() . '/profile/' . $nickname;
 
@@ -524,7 +521,7 @@ function channel_apps($is_owner = false, $nickname = null) {
 		];
 	}
 
-	$arr = ['is_owner' => $is_owner, 'nickname' => $nickname, 'tab' => (($tab) ? $tab : false), 'tabs' => $tabs];
+	$arr = ['is_owner' => $is_owner, 'nickname' => $nickname, 'tabs' => $tabs];
 
 	call_hooks('channel_apps', $arr);
 
diff --git a/include/text.php b/include/text.php
index 87aaf7bf8..63b472bbd 100644
--- a/include/text.php
+++ b/include/text.php
@@ -1836,6 +1836,7 @@ function prepare_body(&$item,$attach = false,$opts = false) {
 
 	$categories = format_categories($item,$writeable);
 
+	$filer = '';
 	if(local_channel() == $item['uid'])
 		$filer = format_filer($item);