cookie 跨域使用的问题 [ 2.0 版本 ]

话不多说，贴代码，求大佬帮下忙解决

子域设置cookie

$cookie = new Cookie([
    'name' =>'user',
    'domain'=>'.yupaojixie.com',
    'value' => $userId,
    'expire' => time() + 3600*24*7,
    //'httpOnly' => true
]);
\Yii::$app->response->getCookies()->add($cookie);

子域查看设置的cookie

public function actionShowCookie()
{
    $cookie = \Yii::$app->request->cookies;
    pre($cookie);
}

主域获取cookie

$cookieName = 'user';
$cookie = \Yii::$app->request->cookies;
pre($cookie);
//判断cookie是否存在
if($cookie->has($cookieName)){
    echo '已登录1';
}else{
    echo '未登录1';
}

查看结果