升级至Laravel 5.7报错setTrustedProxies() must be of the type integer的处理

  报错信息如下：

Symfony\Component\Debug\Exception\FatalThrowableError thrown with message "Argument 2 passed to Symfony\Component\HttpFoundation\Request::

setTrustedProxies() must be of the type integer, array given, called in D:\phpStudy\Laravel5.5\vendor\fideloper\proxy\src\TrustProxies.php on line 54"

查阅文档发现是由于Symfony HttpFoundation 的可信任代理功能发生了根本性的改变，需要调整中是间件。

打开 App\Http\Middleware\TrustProxies

将代码：

protected $headers = [

        Request::HEADER_FORWARDED => 'FORWARDED',

        Request::HEADER_X_FORWARDED_FOR => 'X_FORWARDED_FOR',

        Request::HEADER_X_FORWARDED_HOST => 'X_FORWARDED_HOST',

        Request::HEADER_X_FORWARDED_PORT => 'X_FORWARDED_PORT',

        Request::HEADER_X_FORWARDED_PROTO => 'X_FORWARDED_PROTO',

    ];

修改为：

protected $headers = Request::HEADER_X_FORWARDED_ALL;

再次测试正常。