yii2-Cookie

yii2 Cookie

读取 Cookies

$cookies = Yii::$app->request->cookies;

// 获取名为 "language" cookie 的值，如果不存在，返回默认值"en"
$language = $cookies->getValue('language', 'en');

// 另一种方式获取名为 "language" cookie 的值
if (($cookie = $cookies->get('language')) !== null) {
    $language = $cookie->value;
}

// 可将 $cookies当作数组使用
if (isset($cookies['language'])) {
    $language = $cookies['language']->value;
}

// 判断是否存在名为"language" 的 cookie
if ($cookies->has('language')) ...
if (isset($cookies['language'])) ...

发送Cookies

// 从"response"组件中获取cookie 集合(yii\web\CookieCollection)
$cookies = Yii::$app->response->cookies;

// 在要发送的响应中添加一个新的cookie
$cookies->add(new \yii\web\Cookie([
    'name' => 'language',
    'value' => 'zh-CN',
]));

// 删除一个cookie
$cookies->remove('language');
// 等同于以下删除代码
unset($cookies['language']);

配置 Cookie验证

return [
    'components' => [
        'request' => [
            'cookieValidationKey' => 'fill in a secret key here',
        ],
    ],
];