Fix PHP warnings

main/social/invitations.php

@@ -204,7 +204,7 @@ if (count($pending_invitations) > 0) {
         $img = '<img class="img-responsive" src="'.$picture['file'].'" />';
         $invitation['picture_uri'] = '<a href="group_view.php?id='.$invitation['id'].'">'.$img.'</a>';
         $invitation['name'] = '<a href="group_view.php?id='.$invitation['id'].'">'.cut($invitation['name'],120,true).'</a>';
-        $invitation['description'] = cut($invitation['description'],220,true);
+        $invitation['description'] = cut($invitation['description'], 220, true);
         $new_invitation[]=$invitation;
         $waitingInvitation .= '<div class="panel-invitations"><div class="row">';
         $waitingInvitation .= '<div class="col-md-3">'.$invitation['picture_uri'].'</div>';
@@ -235,7 +235,7 @@ if (count($pending_invitations) > 0) {
 $tpl = new Template(null);
 SocialManager::setSocialUserBlock($tpl, api_get_user_id(), 'invitations');
 $tpl->assign('social_menu_block', $social_menu_block);
-$tpl->assign('social_invitations_block',$socialInvitationsBlock);
+$tpl->assign('social_invitations_block', $socialInvitationsBlock);
 $tpl->assign('content', $content);
 $social_layout = $tpl->get_template('social/invitations.tpl');
 $tpl->display($social_layout);

main/work/work.lib.php

@@ -5290,24 +5290,25 @@ function getWorkCreatedByUser($user_id, $courseId, $sessionId)
         $sessionId
     );
 
-    $forumList = array();
+    $list = array();
     if (!empty($items)) {
-        foreach ($items as $forum) {
+        foreach ($items as $work) {
             $item = get_work_data_by_id(
-                $forum['ref'],
+                $work['ref'],
                 $courseId,
                 $sessionId
             );
-
-            $forumList[] = array(
-                $item['title'],
-                api_get_local_time($forum['insert_date']),
-                api_get_local_time($forum['lastedit_date'])
-            );
+            if (!empty($item)) {
+                $list[] = array(
+                    $item['title'],
+                    api_get_local_time($work['insert_date']),
+                    api_get_local_time($work['lastedit_date'])
+                );
+            }
         }
     }
 
-    return $forumList;
+    return $list;
 }
 
 /**