Silex - getter for getting user login

Question

PHP

Hello.
I continue to understand Silex. This time the following question arose:
Authorization is implemented on the site. And sometimes you want to write the user's login to the database.
The doc contains the code:

$token = $app['security']->getToken();
if (null !== $token) {
    $user = $token->getUser();
}

In this case, an object with private properties is returned. As far as I understand, it is necessary to make a getter to be able to operate with this data.
Please explain how to do this? I don't understand and can't find any info.

Answer 1

Apparently, in the screwed user model, you need to write these getters.

public function getUsername()
{
    return $this->username;
 }

, something like that.