tingwu/app/demo/middleware/Check.php

<?php
/**
 * Created by PhpStorm.
 * User: 97
 */
namespace app\demo\middleware;

class Check {

    /**
     * 中间件初始判断（默认方法）
     * @param $request
     * @param \Closure $next
     * @return mixed
     */
    public function handle($request,\Closure $next){

        $request->type = "测试中间件";

        return $next($request);
    }

    /**
     * 中间件结束调度
     * @param \think\Response $response
     */
    public function end(\think\Response $response){

    }

}