thinkphp 5 跨域问题解决

版本：5.1.41 LTS

从网上搜到好多从/public/index.php 添加heade信息，或者用中间件，或者添加behavior操作，可以做到解决跨域问题，但是亲身试验了都不行，今天刚找了一个，可以使用，放在这里

header('Access-Control-Allow-Credentials: true');
header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE');
header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With');
header('Access-Control-Allow-Origin: *');
// 支持事先使用静态方法设置Request对象和Config对象
if($_SERVER['REQUEST_METHOD'] == 'OPTIONS'){
    //允许的源域名
    header("Access-Control-Allow-Origin: *");
    //允许的请求头信息
    header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization,token");
    //允许的请求类型
    header('Access-Control-Allow-Methods: GET, POST, PUT,DELETE,OPTIONS,PATCH');
    exit;
}