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',
],
],
];