public function actionGet() { $objreservationId = Yii::$app->request->get('objreservationId'); $dateBegin = Yii::$app->request->get('dateBegin'); $reservationinfo = Reservationinfo::findOne(['objreservation_id' => $objreservationId, 'date_begin' => $dateBegin]); $this->layout = false; if (!empty($reservationinfo)) { return $reservationinfo->id; } else { return false; } }