How to check cookies in yii2

setcookie("name", "Larry", time()+3600);

$cookies = Yii::$app->response->cookies;
 
$cookies->add(new \yii\web\Cookie([
    'name' => 'name',
    'value' => 'Larry',
    'expire'=>time()+3600
]));

$name=$_COOKIE["user"]

$cookies = Yii::$app->request->cookies;//注意此处是request
$language = $cookies->get('user', 'defaultName');//获取默认值

if(isset($_COOKIE["user"])){ }

$cookies = Yii::$app->request->cookies;
 
if (isset($cookies['user'])){ }
if ($cookies->has('user')){ }
if (isset($cookies['user'])){ }