YII学习总结4（cookie操作）

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

class HelloController extends Controller{
//存入cookie和修改cookie
$cookies = \YII::$app->response->cookies;
$cookie_data = array('name'=>"user","value"=>"zhangsan");
$cookies->add(new Cookie($cookie_data));//以'cookieValidationKey' 为基础的加密字符串
$cookies->remove("id");//移除掉ID的cookie

//取出cookie的值
$cookies = \YII::$app->request->cookies;
$cookies->getValue("user");
//如果cookie不存在
$cookies->getValue("user",20);//返回20

}
?>