protected function _load($config, $path, $prefix = '')
    {
        if (file_exists($path)) {
            $config->load($path, $prefix);
        }

        $localConfig = preg_replace('/(.*)\.ini$/', '$1.local.ini', $path);
        if (file_exists($localConfig)) {
            $config->load($localConfig, $prefix);
        }
    }