xml装php数组

$data = simplexml_load_string($res, 'SimpleXMLElement', LIBXML_NOCDATA);
$arr = converArray($data);

function converArray($xmlData)
{
	foreach((array)$xmlData as $val=>$key)
	{
		if(!is_string($key))
		{
			$arr =converArray($key);
			$list[$val] = $arr;
		}
		else
		{
			$list[$val] = $key;
		}
	}
	return $list;
}