N98\Magento\Application\Config::traverse PHP Метод

    private function traverse(array $keys)
    {
        $anchor =& $this->config;
        foreach ($keys as $key) {
            if (!is_array($anchor)) {
                return;
            }
            if (!isset($anchor[$key])) {
                return;
            }
            $anchor =& $anchor[$key];
        }
        return $anchor;
    }