tingwu/app/admin/controller/Login.php

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

use app\BaseController;
use think\facade\View;

class Login extends BaseController{

    public function index(){
//        echo '111';
        return View::fetch();
    }

    public function md5(){
        return md5("123456");
    }

    public function check(){
//        return show(config("status.success"),"登录成功");

        if(!$this->request->isPost()){
            return show(config("status.error"),"请求方式错误");
        }

        //参数验证  1、原生方式   2、TP6验证机制
        //原生方式
        $username = $this->request->param("username","","trim");
        $password = $this->request->param("password","","trim");
        $captcha = $this->request->param("captcha","","trim");

        if(empty($username) || empty($password) || empty($captcha)){
            return show(config("status.error","参数不能为空"));
        }
        //需要校验验证码
        if(!captcha_check($captcha)){//中间件中 session 需要开启才能正常验证
            //验证码校验失败
            return show(config("status.error"),"验证码不正确");
        }

        return show(config("status.error"),"登录成功");
    }


}