php xml转数组,数组转xml,array转xml,xml转array

//数组转XML

    function arrayToXml($arr)

    {

        $xml = "<xml>";

        foreach ($arr as $key=>$val)

        {

            if (is_numeric($val)){

                $xml.="<".$key.">".$val."</".$key.">";

            }else{

                 $xml.="<".$key."><![CDATA[".$val."]]></".$key.">";

            }

        }

        $xml.="</xml>";

        return $xml;

    }

    //将XML转为array

    function xmlToArray($xml)

    {

        //禁止引用外部xml实体

        libxml_disable_entity_loader(true);

        $values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);

        return $values;

    }

$money = 101;

$sender = "方倍工作室";

$obj2 = array();

$obj2['wxappid']             = APPID;

$obj2['mch_id']             = MCHID;

$obj2['mch_billno']            = MCHID.date('YmdHis').rand(1000, 9999);

$obj2['client_ip']            = $_SERVER['REMOTE_ADDR'];

$obj2['re_openid']             = $openid;

$obj2['total_amount']       = $money;

$obj2['min_value']             = $money;

$obj2['max_value']             = $money;

$obj2['total_num']             = 1;

$obj2['nick_name']          = $sender;

$obj2['send_name']          = $sender;

$obj2['wishing']            = "恭喜发财";

$obj2['act_name']              = "方倍工作室送红包";

$obj2['remark']              = "关注公众账号";

<xml>

  <wxappid><![CDATA[wx1b7559b818e3c123]]></wxappid>

  <mch_id>1235571234</mch_id>

  <mch_billno>1235571234201605241726128109</mch_billno>

  <client_ip><![CDATA[127.0.0.1]]></client_ip>

  <re_openid><![CDATA[oiPuduGV7gJ_MOSfAWpVmhhgXh-U]]></re_openid>

  <total_amount>101</total_amount>

  <min_value>101</min_value>

  <max_value>101</max_value>

  <total_num>1</total_num>

  <nick_name><![CDATA[方倍工作室]]></nick_name>

  <send_name><![CDATA[方倍工作室]]></send_name>

  <wishing><![CDATA[恭喜发财]]></wishing>

  <act_name><![CDATA[方倍工作室送红包]]></act_name>

  <remark><![CDATA[关注公众账号]]></remark>

</xml>