public function actionAddQuestion() { $courseId = Yii::$app->request->post('courseId'); $content = Yii::$app->request->post('content'); $userId = Yii::$app->user->id; $model = new Question(); if ($model->addData($userId, $content, $courseId)) { echo Json::encode('true'); return; } else { echo Json::encode('false'); return; } }