> Yii2通過在config/web.php 文件設置cookieValidationKey哈希字符串來簽名每個cookie，從而保護 cookies 在客戶端被別人修改。 [TOC] ## 獲取cookie ~~~ public function actionReadCookies() { // 從request組件獲取cookie對象 $cookies = Yii::$app->request->cookies; // 如果language不存在，則賦默認值 $language = $cookies->getValue('language', 'Chinese'); // cookie對象也可以當數組使用 if (isset($cookies['language'])) { $language = $cookies['language']->value; } // check if there is a "language" cookie //檢測是否含有language cookie if ($cookies->has('language')) echo "當前語言為: $language"; } ~~~ ## 設置cookie ~~~ public function actionSendCookies() { // 從response組件獲取cookie對象 $cookies = Yii::$app->response->cookies; // 添加cookie $cookies->add(new \yii\web\Cookie([ 'name' => 'language', 'value' => 'Chinese', ])); $cookies->add(new \yii\web\Cookie([ 'name' => 'username', 'value' => 'Hippo', ])); $cookies->add(new \yii\web\Cookie([ 'name' => 'country', 'value' => 'China', ])); } ~~~ ## 刪除cookie ~~~ public function actionDeleteCookies() { \Yii::$app->response->cookies->remove('language'); } ~~~