Minor - fix PHP errors from master

main/dropbox/dropbox_functions.inc.php

@@ -1271,18 +1271,19 @@ function store_feedback()
     if (empty($_POST['feedback'])) {
         return get_lang('PleaseTypeText');
     } else {
+        $table = Database::get_course_table(TABLE_DROPBOX_FEEDBACK);
         $params = [
             'c_id' => $course_id,
             'file_id' => $_GET['id'],
             'author_user_id' => api_get_user_id(),
             'feedback' => $_POST['feedback'],
             'feedback_date' => api_get_utc_datetime(),
+            'feedback_id' => 0,
         ];
 
-        $id = Database::insert(Database::get_course_table(TABLE_DROPBOX_FEEDBACK), $params);
+        $id = Database::insert($table, $params);
         if ($id) {
-            $sql = "UPDATE ".Database::get_course_table(TABLE_DROPBOX_FEEDBACK)." 
-                    SET feedback_id = iid WHERE iid = $id";
+            $sql = "UPDATE $table SET feedback_id = iid WHERE iid = $id";
             Database::query($sql);
         }
 

main/forum/editthread.php

@@ -17,6 +17,7 @@ api_protect_course_script(true);
 
 $cidreq = api_get_cidreq();
 $nameTools = get_lang('ToolForum');
+$_user = api_get_user_info();
 
 require_once 'forumfunction.inc.php';