php - Slim framework get the data from a form -

i try make simple form slim framework. don't know how display posted data. want try echo it. heard need use library respect, think slim can such small thing.

here code :

require '../../vendor/slim/slim/slim/slim.php'; \slim\slim::registerautoloader(); $app = new \slim\slim();  $app->get('/', function() use ($app){     $app->render('form.php'); });  $app->post('/', function() use ($app){     $req = $app->request();     $errors = array();     $params = array(         'email' => array(             'name'=>'email',             'required'=>true,             'max_length'=>64,         ),         'subject' => array(             'name'=>'subject',             'required'=>true,             'max_length'=>256,         ),       );         //submit_to_db($email, $subject, $message);         $app->flash('message','form submitted!');      $app->redirect('./'); });  $app->run(); 

in slim 2, can access posted data using post() method of request():

$app->post('/', function () use ($app) {     $request = $app->request();     $email = $request->post('email');     $subject = $request->post('subject');     echo "email: $email<br/>";     echo "subject: $subject"; }); 

in slim 3, request passed callback/controller/etc. , can call getparam() fetches value body or query string (in order):

$app->post('/', function ($request, $response, $args) {     $email = $request->getparam('email');     $subject = $request->getparam('subject');     echo "email: $email<br/>";     echo "subject: $subject"; }); 

starting slim 3.1 there getparsedbodyparam() , getfetchparam() fetch body or query string. (pr #1620)

reminder, can provide default value: $request->getparam('email', 'default_value')