请高手帮忙看一下，怎么取出返回的XML的值

请高手帮忙看一下，如何取出返回的XML的值
header("Content-Type:text/html;   charset=utf-8");
error_reporting(E_ALL ^ E_NOTICE);

ob_start();
require_once('lib/nusoap.php');

$url ="http://wingcyx.gicp.net:1600/WeChatSrv.asmx?wsdl";
$client = new nusoap_client($url, 'wsdl','','','','');
$client->soap_defencoding='utf-8';
$client->decode_utf8=false;
$client->xml_encoding='utf-8';
//参数转换为数组传递
$ary = array('WeChat' => 'wingcyx', 'mobile' => '13670500598');
$result = $client->call('regmember',$ary);
$result =get_object_vars($result);

echo $result->regmemberResult;

?>

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------解决方案--------------------

<?php<br />header("Content-Type:text/html;   charset=utf-8");<br />error_reporting(E_ALL ^ E_NOTICE);<br /><br />ob_start();<br />require_once('lib/nusoap.php');<br /><br />$url ="http://wingcyx.gicp.net:1600/WeChatSrv.asmx?wsdl";<br />$client = new nusoap_client($url, 'wsdl','','','','');<br />$client->soap_defencoding='utf-8';<br />$client->decode_utf8=false;<br />$client->xml_encoding='utf-8';<br />//参数转换为数组传递<br />$ary = array('WeChat' => 'wingcyx', 'mobile' => '13670500598');<br />$result = $client->call('regmember',$ary);<br /><br />//$result =get_object_vars($result);<br /><br />$doc = new DOMDocument();<br />$doc->loadXML($result['regmemberResult']);<br />echo $doc->getElementsByTagName('CardId')->item(0)->nodeValue;