SimpleMail/simpleEmail_Projekt/main/test.php

<?php
include_once '../domain/userManager.php';

$testManager = new UserManager();

$user = $testManager->userRegister(
    'Ali',
    'Obaya',
    '2000-01-01',
    Gender::Male,
    'obai.albek',
    'meinPasswort123'
);

echo $user;
?>