php数组和xml互相转换

 

//数组转xml
function ArrToXml($arr)
{
    if(!is_array($arr) || count($arr) == 0) return '';

    $xml = "";
    foreach ($arr as $key=>$val)
    {
        if (is_numeric($val)){
            $xml.="<".$key.">".$val."";
        }else{
            $xml.="<".$key.">";
        }
    }
    $xml.="";
    return $xml;
}

//Xml转数组
function XmlToArr($xml)
{
    if($xml == '') return '';
    libxml_disable_entity_loader(true);
    $arr = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
    return $arr;
}