Ergo\Http\RequestFactory::_getHeaders PHP Method

    private function _getHeaders()
    {
        if (!function_exists('apache_request_headers')) {
            return array();
        }
        $headers = array();
        foreach (apache_request_headers() as $name => $value) {
            $headers[] = new HeaderField($name, $value);
        }
        return $headers;
    }