$data = wp_parse_args( $data, array(
                'username'          =>  '',
                'user_email'        =>  '',
                'cptch_number'      =>  '',
                'cptch_result'      =>  '',
                'cptch_time'        =>  '',
                'cptch_form'        =>  ''
            ) );

            $_REQUEST['cptch_number'] = $data['cptch_number'];
            $_REQUEST['cptch_result'] = $data['cptch_result'];
            $_REQUEST['cptch_time'] = $data['cptch_time'];
            $_REQUEST['cptch_form'] = $data['cptch_form'];