Yii2: How to access _POST method data - php

Question

Sending form data from one action to another
<?php $form = ActiveForm::begin(['action' =>'site/roomsearch','method' => 'post']); ?>
<?= $form->field($model, 'arrival')->label(false) ?>
<?= $form->field($model, 'departure')->label(false) ?>
<?= Html::submitButton('Send', ['class' => 'btn btn-white']) ?>
<?php ActiveForm::end(); ?>
index page has the above form from which sending data to actionRoomsearch()
actionindex():
public function actionIndex()
{
$model = new \yii\base\DynamicModel(['arrival','departure','adult','child']);
if($model->load(Yii::$app->request->post()))
{
$arrival = $model->arrival;
$departure = $model->departure;
return $this->redirect([
'roomsearch',
'arrival' => $arrival ,
'departure' => $departure
]);
}
return $this->render('index', ['model'=>$model]);
}
actionroomsearch():
{
$post = Yii::$app->request->post();
$arrival = $post['arrival'];
$departure = $post['departure'];
return $this->render('roomsearch',[
'arrival' =>$arrival,
'departure' => $departure,
]);
}
How to display arrival and departure in roomsearch page?
Created model using \yii\base\DynamicModel

Answer 1

Well as you are redirecting from one action to another , you cant access POST data in the second action. But you can pass it as get parameters
return $this->redirect(\yii\helpers\Url::to([
'/you_controller/your_action',
'arrival' => $arrival ,
'departure' => $departure
]));
In your Second Action
$arrival = yii::$app->request->get('arrival');
$departure = yii::$app->request->get('departure');

Answer 2

Used dynamic model as no data need to save in database
public function actionIndex()
{
$model = new \yii\base\DynamicModel(['arrival','departure']);
$model->addRule(['arrival', 'departure'], 'string', ['max' => 128]);
$arrival = $model->arrival;
if($model->load(Yii::$app->request->post()))
{
$arrival = $model->arrival;
$departure = $model->departure;
$model->save();
}
return $this->render('index', ['model'=>$model]);
}
To get the POST method data in actionRoomsearch
public function actionRoomsearch()
{
$data = yii::$app->request->post();
if(isset($data['DynamicModel']))
{
$arrival = $data['DynamicModel']['arrival'];
$departure = $data['DynamicModel']['departure'];
}
return $this->render('roomsearch',['arrival' =>$arrival,'departure' => $departure]);
}
To display data on page <?php echo $arrival; ?>

Answer 3

Since this is a communication between two request. I will prefer to use Flash
Note: Flash will be deleted automatically after the next request.
public function actionIndex()
{
$model = new \yii\base\DynamicModel(['arrival', 'departure', 'adult', 'child']);
if($model->load(Yii::$app->request->post()))
{
Yii::$app->session->setFlash('arrival', $model->arrival);
Yii::$app->session->setFlash('departure', $model->departure);
return $this->redirect(['roomsearch']);
}
return $this->render('index', ['model'=>$model]);
}
In the room-search page
public function actionRoomSearch()
{
$session = Yii::$app->session;
$arrival = $session->hasFlash('arrival') ? $session->getFlash('arrival') : null;
$departure = $session->hasFlash('departure') ? $session->getFlash('departure') :null;
//Do whatever you like with the data
}
The reason I prefer this method over $_GET is because there are times
where you have to send security sensitive data over pages and you don't
want it revealed in the browser's address bar.
E.g ID that is posted in an hidden field.