/**
 * Инициализация переменной
 */
    $route = trim(isset($_GET['route']) ? $_GET['route'] : 'welcome', '/');
/**
 * Фильтр URL
 */
    if(!preg_match('/^[a-z 0-9_\/]+$/u', $route))
        show404();
/**
 * Маршрут
 */
    $fragments = explode('/', $route);
    $result = [
        'directory'  => array_shift($fragments),
        'controller' => array_shift($fragments),
        'segments'   => $fragments
    ];

    if(empty($result['controller']))
        $result['controller'] = 'index';
    if(!is_dir(LIF_PATH . '/application/controllers/' . $result['directory']) && !is_file(LIF_PATH . '/application/controllers/' . $result['directory'] . '/' . $result['controller'] . '.php'))
        show404();