validate PL phone number codeigniter function

validate_phone

  function validate_phone($phone){
        if( 
            !preg_match("/\(\d{2}\) \d{3}-\d{2}-\d{2}/",$phone) && 
            !preg_match("/\d{3}-\d{3}-\d{3}/",$phone)

        ){
            $this->form_validation->set_message('validate_phone', 'Pole {field} nie zawiera poprawnego numeru telefonu');
            return false;
        } else {
            return true;
        }
    }