用php读取xml soap,该怎么处理

用php读取xml soap
我又遇到一个难题，请高手帮我解决一下

有个xml文件，格式比较奇怪，也许我从来没有接触过这种文件吧

XML code

<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><QueryResponse xmlns="http://tempuri.org/"><QueryResult>Order_flag=0&amp;Name_num=2077&amp;StartCity=SZX&amp;EndCity=PEK&amp;Dates=2012-5-31&amp;.......后面还有好多这样的数据。</QueryResult></QueryResponse></soap:Body></soap:Envelope>

PHP code

<?php$soap=<<<SOAP<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><QueryResponse xmlns="http://tempuri.org/"><QueryResult>Order_flag=0&amp;Name_num=2077&amp;StartCity=SZX&amp;EndCity=PEK&amp;Dates=2012-5-31&amp;.......后面还有好多这样的数据。</QueryResult></QueryResponse></soap:Body></soap:Envelope>SOAP;$xml=simplexml_load_string($soap);$result = $xml->children('http://schemas.xmlsoap.org/soap/envelope/')    ->children('http://tempuri.org/')    ->QueryResponse    ->QueryResult;echo $result;//Order_flag=0&Name_num=2077&StartCity=SZX&EndCity=PEK&Dates=2012-5-31&.......后面还有好多这样的数据。