XML解析失败？

Question

XMLDATA:
<configuration>
<system.serviceModel>
    <client>
      <endpoint name="ClassRelationService"
                address="net.tcp://192.168.1.61:9003/class/"
                binding="netTcpBinding"
                contract="CiWong.Relation.WCFContract.IClassRelationManager"
                bindingConfiguration="NetTcpBinding_IClassRelationManager" />
      <endpoint name="shopEndpoint"
                address="net.tcp://192.168.1.61:9005/eshop/"
                binding="netTcpBinding"
                contract="CiWong.EShop.WCFService.Contract.IEShopContract"
                bindingConfiguration="NetTcpBinding_IEShopContract"/>
    </client>
</system.serviceModel>
</configuration>解析代码：<?php
$list=$doc->getElementsByTagName('system.serviceModel');
$list=$list->item(0);
$clients=$list->getElementsByTagName('client');
$clients=$clients->item(0);
foreach ($clients->attributes as $endpoints) {
$endattname=$endpoints->nodeName;
         $endattval=$endpoints->nodeValue;
echo "$endattname=$endattval"."<br>";
}
?>
echo出来没有任何内容。
请问怎么才能正常把endpoint里面的属性解析出来？

Answer 1

$xml = simplexml_load_file("bb.xml");  
$result = $xml->xpath('/configuration/system.serviceModel/client/endpoint');
foreach($result as $r){
       foreach($r->attributes() as $k=>$v) echo "$k=>$v<br>";
}
name=>ClassRelationService
address=>net.tcp://192.168.1.61:9003/class/
binding=>netTcpBinding
contract=>CiWong.Relation.WCFContract.IClassRelationManager
bindingConfiguration=>NetTcpBinding_IClassRelationManager
name=>shopEndpoint
address=>net.tcp://192.168.1.61:9005/eshop/
binding=>netTcpBinding
contract=>CiWong.EShop.WCFService.Contract.IEShopContract
bindingConfiguration=>NetTcpBinding_IEShopContract