frontend\controllers\SchoolController::actionIndex PHP Method

    public function actionIndex($id)
    {
        $model = School::findOne($id);
        if (!$model) {
            throw new NotFoundHttpException('未找到该学校！');
        }
        $cookieSchool = new Cookie(['name' => 'schoolId', 'value' => $id, 'expire' => time() + 86400 * 30]);
        Yii::$app->response->cookies->add($cookieSchool);
        Yii::$app->params['schoolModel'] = $model;
        return $this->render('index', ['model' => $model]);
    }