defender::stop PHP Method

    static function stop()
    {
        global $locale;
        if (!defined('FUSION_NULL')) {
            addNotice('danger', $locale['error_request']);
            define('FUSION_NULL', TRUE);
        }
    }

 /**
  * Delete Forum.
  * If Forum has Sub Forum, deletion will give you a move form.
  * If Forum has no Sub Forum, it will prune itself and delete itself.
  *
  */
 private function validate_forum_removal()
 {
     global $aidlink;
     if (isset($_GET['forum_id']) && isnum($_GET['forum_id']) && isset($_GET['forum_cat']) && isnum($_GET['forum_cat'])) {
         $forum_count = dbcount("('forum_id')", DB_FORUMS, "forum_cat='" . $_GET['forum_id'] . "'");
         if ($forum_count >= 1) {
             // Delete forum
             /**
              * $action_data
              * 'forum_id' - current forum id
              * 'forum_branch' - the branch id
              * 'threads_to_forum' - target destination where all threads should move to
              * 'delete_threads' - if delete threads are checked
              * 'subforum_to_forum' - target destination where all subforums should move to
              * 'delete_forum' - if delete all subforums are checked
              */
             if (isset($_POST['forum_remove'])) {
                 $action_data = array('forum_id' => isset($_POST['forum_id']) ? form_sanitizer($_POST['forum_id'], 0, 'forum_id') : 0, 'forum_branch' => isset($_POST['forum_branch']) ? form_sanitizer($_POST['forum_branch'], 0, 'forum_branch') : 0, 'threads_to_forum' => isset($_POST['move_threads']) ? form_sanitizer($_POST['move_threads'], 0, 'move_threads') : '', 'delete_threads' => isset($_POST['delete_threads']) ? 1 : 0, 'subforums_to_forum' => isset($_POST['move_forums']) ? form_sanitizer($_POST['move_forums'], 0, 'move_forums') : '', 'delete_forums' => isset($_POST['delete_forums']) ? 1 : 0);
                 if (self::verify_forum($action_data['forum_id'])) {
                     // Threads and Posts action
                     if (!$action_data['delete_threads'] && $action_data['threads_to_forum']) {
                         //dbquery("UPDATE ".DB_FORUM_THREADS." SET forum_id='".$action_data['threads_to_forum']."' WHERE forum_id='".$action_data['forum_id']."'");
                         dbquery("UPDATE " . DB_FORUM_POSTS . " SET forum_id='" . $action_data['threads_to_forum'] . "' WHERE forum_id='" . $action_data['forum_id'] . "'");
                     } elseif ($action_data['delete_threads']) {
                         // remove all threads and all posts in this forum.
                         self::prune_attachment($action_data['forum_id']);
                         // wipe
                         self::prune_posts($action_data['forum_id']);
                         // wipe
                         self::prune_threads($action_data['forum_id']);
                         // wipe
                         self::recalculate_post($action_data['forum_id']);
                         // wipe
                     } else {
                         \defender::stop();
                         addNotice('danger', self::$locale['forum_notice_na']);
                     }
                     // Subforum action
                     if (!$action_data['delete_forums'] && $action_data['subforums_to_forum']) {
                         dbquery("UPDATE " . DB_FORUMS . " SET forum_cat='" . $action_data['subforums_to_forum'] . "', forum_branch='" . get_hkey(DB_FORUMS, 'forum_id', 'forum_cat', $action_data['subforums_to_forum']) . "'\n\t\t\t\t" . (multilang_table("FO") ? "WHERE forum_language='" . LANGUAGE . "' AND" : "WHERE") . " forum_cat='" . $action_data['forum_id'] . "'");
                     } elseif (!$action_data['delete_forums']) {
                         \defender::stop();
                         addNotice('danger', self::$locale['forum_notice_na']);
                     }
                 } else {
                     \defender::stop();
                     addNotice('error', self::$locale['forum_notice_na']);
                 }
                 self::prune_forums($action_data['forum_id']);
                 addNotice('info', self::$locale['forum_notice_5']);
                 redirect(FUSION_SELF . $aidlink);
             }
             self::display_forum_move_form();
         } else {
             self::prune_attachment($_GET['forum_id']);
             self::prune_posts($_GET['forum_id']);
             self::prune_threads($_GET['forum_id']);
             self::recalculate_post($_GET['forum_id']);
             dbquery("DELETE FROM " . DB_FORUMS . " WHERE forum_id='" . intval($_GET['forum_id']) . "'");
             addNotice('info', self::$locale['forum_notice_5']);
             redirect(FUSION_SELF . $aidlink);
         }
     }
 }