public function deleteFromList($key_array = array())
    {

        if (empty($key_array)) return false;

        foreach ($key_array as $key_del) {
            if (empty($this->cacheListing)) break;
            foreach ($this->cacheListing as $key) {
                if (mb_strpos(mb_strtolower($key), mb_strtolower($key_del)) !== false) $this->delete($key);
            }
        }

        return true;
    }