PHP跨域

可加在入口文件（index.php,api.php等）或对应控制器方法内

<?php
    header('Content-Type: text/html;charset=utf-8');
    header('Access-Control-Allow-Origin:*'); 
    header('Access-Control-Allow-Methods:POST,GET,OPTIONS,DELETE');
    header('Access-Control-Allow-Credentials: true');
    header('Access-Control-Allow-Headers: Content-Type,Content-Length,Accept-Encoding,X-Requested-with, Origin');

在middleware.php中间件中调用自带（tp6）

<?php
// 全局中间件定义文件
return [
    // 全局请求缓存
    // \think\middleware\CheckRequestCache::class,
    // 多语言加载
    // \think\middleware\LoadLangPack::class,
    // Session初始化
    // \think\middleware\SessionInit::class
    \think\middleware\AllowCrossDomain::class
];