AssetsHelper::asset PHP Method

    public function asset($url, $name, $extension = null)
    {
        if (!Mapper::isExternal($url)) {
            if (!is_null($extension)) {
                $url = $this->extension($url, $extension);
            }
            $url = Mapper::url($url, false, self::$assets[$name]);
        }
        return $url;
    }