Roller\Router::__construct PHP Метод

    public function __construct($routes = null, $options = array())
    {
        /* setup custom route class */
        if (isset($options['route_class'])) {
            $this->matchedRouteClass = $options['route_class'];
        }
        if ($routes && !is_a($routes, 'Roller\\RouteSet')) {
            throw new RouterException('Router constructor argument #1 is not a Roller\\RouteSet object.');
        }
        if (isset($options['enable_extension']) && extension_loaded('roller')) {
            $this->extensionSupport = true;
        }
        /* if cache_id is defined (only), we use apc for caching defined routes */
        if (isset($options['cache_id'])) {
            $this->cacheId = $options['cache_id'];
            if (extension_loaded('apc')) {
                $this->cache = self::cache_type_apc;
                if (false !== ($c = apc_fetch($options['cache_id']))) {
                    $this->routes = eval($c);
                    $this->hasCache = true;
                }
            }
        }
        if (isset($options['cache_dir'])) {
            $this->cacheDir = $options['cache_dir'];
            $this->cache = self::cache_type_file;
            $cacheFile = $this->cacheDir . DIRECTORY_SEPARATOR . $this->cacheId;
            $this->hasCache = false;
            if (file_exists($cacheFile)) {
                // check expiry
                if ($this->cacheExpiry && filemtime($cacheFile) + $this->cacheExpiry < time()) {
                    // expired, do something ?
                } else {
                    $this->routes = (require $cacheFile);
                    $this->hasCache = true;
                }
            }
        }
        if (isset($options['reload'])) {
            $this->reload = $options['reload'];
        }
        if (null == $this->routes) {
            $this->routes = $routes ?: new RouteSet();
        }
    }