PHP - Callback page - $auth0->getUser() is null

Hi,

I have a little problem … I made a web app in PHP. I tried to made a login system with auth0. But when i call my callback page my $auth0->getUser() return null. And I don’t know why ?
Can you help me ?

My index.php :

<?php 
session_start();
require_once  __DIR__ . '/inc/Github/auth0/vendor/autoload.php';
require_once('./inc/Github/test.php');

include_once('inc/header.php');

    if(isset($_GET"page"])) {
        switch ($_GET'page']) {
            case "home":
                include("pages/home.php");
                break;
            case "dashboard":
                include("pages/dashboard.php");
                break;
            default:
                include("pages/404.php");
                break;
        }
    }else{
         include("pages/home.php");
    }

include('inc/footer.php');
?>

My test.php

<?php 
    use Auth0\SDK\Auth0;

    $auth0 = new Auth0(array(
        'domain'        => 'cisme.eu.auth0.com',
        'client_id'     => 'BGpiP70lDmLaXXTiVF1hOFbRRRQuDQAX',
        'client_secret' => 'sHC_VgwxESF2dC0_uBijsDu ....',
        'redirect_uri'  => 'http://localhost/ManageGituhub/dashboard'
    ));

**My login page (header) **

<!DOCTYPE html>
<?php include_once('./inc/variables.php');?>
  <html>
    <head>
      <link href="http://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
      <link type="text/css" rel="stylesheet" href="css/materialize.css"  media="screen,projection"/>
      <script src="https://cdn.auth0.com/js/lock/10.15/lock.min.js"></script>
      <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
    </head>
    <body>
      <nav>
        <div class="nav-wrapper container">
            <a href="<?php echo BASE_URL;?>" class="brand-logo"><?php echo $siteName ?></a>
            <a href="#" data-activates="mobile-demo" class="button-collapse"><i class="material-icons">menu</i></a>
            <ul class="right hide-on-med-and-down">
                <li><a href="sass.html">A propos</a></li>
                <li><a class="modal-trigger waves-effect waves-dark btn red darken-1" href="#modalLogin"  onclick="lock.show();">Connexion</a></li>
                <li><a class="modal-trigger waves-effect waves-dark btn red darken-1" href="#modalSignIn">Inscription</a></li>
            </ul>            
            <ul class="side-nav" id="mobile-demo">
                <li><a href="sass.html">A propos</a></li>
                <li><a class="modal-trigger waves-effect waves-dark btn red darken-1" data-activates='dropdown1' href="#modalLogin">Connexion</a> </li>
                <li><a class="waves-effect waves-dark btn red darken-1">Inscription</a></li>
            </ul>
        </div>
      </nav>
<?php include_once('./inc/modalSignIn.php');?>
<?php include_once('./inc/modalLogin.php');?>
<?php require_once ('./inc/Github/php-github-api-master/vendor/autoload.php'); ?>

My callback.php

<?php

var_dump($_SESSION);
$userInfo = $auth0->getUser();
var_dump($auth0->getUser());
//$userInfo = $auth0->getUser();

My script.js

  var lock = new Auth0Lock('BGpiP70lDmLaXXTiVF1hOFbRRRQuDQAX', 'cisme.eu.auth0.com', {
    auth: {
      redirectUrl: 'http://localhost/ManageGituhub/dashboard',
      responseType: 'code',
      params: {
        scope: 'openid email' // Learn about scopes: https://auth0.com/docs/scopes
      }
    }
  });

I have the same issue and I struggling with it, @thibaudchriste1997 have you managed to address the problem?

I have the same issue and I struggling with it, @thibaudchriste1997 have you managed to address the problem?