Menu\Items\ItemList::getItemsAtDepth PHP 메소드

    public function getItemsAtDepth($depth)
    {
        $itemsWithDepth = $this->getItemsWithDepth();
        if (array_key_exists($depth, $itemsWithDepth)) {
            return new MenuHandler($itemsWithDepth[$depth]);
        }
        return new MenuHandler(array());
    }