ContentList::suggestTags PHP Method

    public static function suggestTags()
    {
        if (isset($_GET['q']) && ($keyword = trim($_GET['q'])) !== '') {
            $tags = Tag::model()->suggestTags($keyword);
            if ($tags !== array()) {
                echo implode("\n", $tags);
            }
        }
    }

 public function actionSuggestTags()
 {
     ContentList::suggestTags();
 }