Add isWecht for Laravel Request helper

isWechatMacro.php

<?php
// 判断是否微信内访问.
Request::macro('isWechat', function (): bool {
    if (app()->environment(['local', 'testing'])) {
        return true;
    }

    /** @var Request $request */
    $request = $this;

    return false !== strpos($request->userAgent(), 'MicroMessenger');
});