YII学习总结3

<?php
    namespace app\controllers;
    use yii\web\Controller;

    class HelloController extends Controller{
        //把session当做对象
        $session = \YII:$app->session;

        if($session->isActive){
            echo "session isactive";
        }else{
            $session->open();
        }

        $session->set("user","张三");

        $session->get("user");

        $session->remove("user");

        //把session当做数组    
        $session[‘user‘] = "张三";
        unset("user");
    }
?>