";
    foreach ($config as $config_item => $config_value) {
        echo "\n\t\t\t\t\t\t
";
        echo htmlspecialchars($config_item) . ': ';
        if (is_array($config_value)) {
            // here we render recursively nested arrays
            renderConfig($config_value);
        } else {
            // if it's not array, just display it
            echo htmlspecialchars($config_value ?? '');
        }
        echo '';
    }
    echo "\n\t\t\t\t\t";
}
?>