$xmlFile = MAIN_DIR . '/lib/users/characters.xml';

    if(file_exists($xmlFile)) {
        $xml = simplexml_load_file($xmlFile);
        foreach ( $xml->playerCharacters as $user) {
            echo 'ID: ' . $user['UserID'] . '<br>';
            echo 'FAV: ' . $user['Favorite'] . '<br>';
        }
    } else {
        exit("Datei $xmlFile kann nicht geöffnet werden.");
    }