[PHP] xml转为数组函数

    function xml2array($element, $arr = array())
    {
        if(is_string($element))
        {
            $element = (strlen($element) > 5 && substr($element, -4) === '.xml')
                ? simplexml_load_file($element)
                : simplexml_load_string($element);
        }
        $iter = 0;
        foreach($element->children() as $b)
        {
            $a = $b->getName();
            if(!$b->children()){
                $arr[$a] = trim($b[0]);
            }
            else{
                $arr[$a][$iter] = array();
                $arr[$a][$iter] =xml2array($b,$arr[$a][$iter]);
            }
            $iter++;
        }
        return $arr;
    }