yii2使用cookie的方法

首先加载:use yii\web\Cookie;

(1):设置cookie

$cookies = Yii::$app->response->cookies;
// 添加一个cookie
$cookies->add(new \yii\web\Cookie([
    'name' => 'username',
    'value' => 'yiiuser',
]));

(2):获取cookie

$cookies = Yii::$app->request->cookies;
// 获取cookie值
$username = $cookies->getValue('username');
// 不可用的时候,返回默认值
$username = $cookies->getValue('username', 'default');
// 检查cookie的可用性
if ($cookies->has('username'))
{
	echo $cookies->getValue('username');
}

(3):删除cookie

$cookies = Yii::$app->response->cookies;
$cookies->remove('username');
unset($cookies['username']);












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