YII实战笔记-后台登录注册

<?php

namespace app\modules\controllers;

use yii\web\Controller;
use app\models\Admin;
use yii;
/**
 * Default controller for the `admin` module
 */
class LoginController extends Controller
{
    /**
     * Renders the index view for the module
     * @return string
     */
    public function actionSignin()
    {
        $this->layout = false;//去掉头部和尾部
        $model = new Admin;
        if ( Yii::$app->request->isPost ) {//如果是post请求
             $post = Yii::$app->request->post();//接收post请求
             if ($model->login($post)) {
                 $this->redirect(['index/index']);//跳转到后台首页
                 Yii::$app->end();//结束，下面代码不执行
             }
         } 
        return $this->render('signin',["model"=>$model]);//渲染视图 传递数据
    }

　　//退出方法
    public function actionLogout()
    {
        // //清除session
        Yii::$app->session->removeAll();
        if (Yii::$app->session['admin']['isLogin']) {
            $this->redirect(['login/signin']);
        }

        $this->goback();
    }


}