xml转数组

/**
 * xml转数组
 * @param $xml
 * @return array
 */
function xml2array($xml)
{
    $xmlary = array();
    $reels = '/<(\w+)\s*([^\/>]*)\s*(?:\/>|>(.*)<\/\s*\\1\s*>)/s';
    $reattrs = '/(\w+)=(?:"|\')([^"\']*)(:?"|\')/';
    preg_match_all($reels, $xml, $elements);
    foreach ($elements[1] as $ie => $xx) {
        $xmlary[$ie]["name"] = $elements[1][$ie];
        if ($attributes = trim($elements[2][$ie])) {
            preg_match_all($reattrs, $attributes, $att);
            foreach ($att[1] as $ia => $xx)
                $xmlary[$ie]["attributes"][$att[1][$ia]] = $att[2][$ia];
        }
        $cdend = strpos($elements[3][$ie], "<");
        if ($cdend > 0) {
            $xmlary[$ie]["text"] = substr($elements[3][$ie], 0, $cdend - 1);
        }
        if (preg_match($reels, $elements[3][$ie]))
            $xmlary[$ie]["elements"] = xml2array($elements[3][$ie]);
        else if ($elements[3][$ie]) {
            $xmlary[$ie]["text"] = $elements[3][$ie];
        }
    }
    return $xmlary;
}