Сортировка подразделов статей

 
public function getSubCats($parent_id, $left_key, $right_key) {
 
        $subcats=array();
 
        $sql = "SELECT cat.*
                FROM cms_category cat
                WHERE cat.parent_id = '$parent_id' AND cat.published = 1
                ORDER BY cat.title ASC"; //добавлено by • Mike •