php处理复杂xml数据示例

<?php$xml = <<< XML<?xml version="1.0" encoding="utf-8"?><epp xmlns="urn:ietf:params:xml:ns:epp-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd"> <response>  <result code="1000">   <msg>Command completed successfully</msg>  </result>  <resData>   <domain:chkData xmlns:domain="urn:ietf:params:xml:ns:domain-1.0" xsi:schemaLocation="urn:ietf:params:xml:ns:domain-1.0 domain-1.0.xsd">    <domain:cd>     <domain:name avail="0">qq.com</domain:name>     <domain:reason>Domain exists</domain:reason>    </domain:cd>    <domain:cd>     <domain:name avail="1">baidu.com</domain:name>     <domain:reason>Domain exists</domain:reason>    </domain:cd>   </domain:chkData>  </resData>  <trID>   <clTRID>REQ-001-0000000074</clTRID>   <svTRID>649334436-1440642163169</svTRID>  </trID> </response></epp>XML;$x = simplexml_load_string($xml);echo intval($x->response->result["code"]), "/n";echo strval($x->response->result->msg), "/n";$ns = $x->response->resData->getNamespaces(true);$cds = $x->response->resData->children($ns["domain"])->chkData->cd;foreach ($cds as $key => $value) {  echo intval($value->name->attributes()["avail"]), strval($value->name), strval($value->reason), "/n";}