NN2022081301/config/api/app.php

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

// +----------------------------------------------------------------------
// | 应用设置
// +----------------------------------------------------------------------

return [

    // 默认输出类型
    'default_return_type'    => 'json',
    // 默认AJAX 数据返回格式,可选json xml ...
    'default_ajax_return'    => 'json',

];