<?php /* <?xml version="1.0" encoding="utf-8"?> <article> <item> <title name="t1">11</title> <content>content1</content> <pubdate>2009-10-11</pubdate> </item> <item> <title name="t2">title2</title> <content>content2</content> <pubdate>2009-11-11</pubdate> </item> </article> */ if(!function_exists('l')) { function l() { echo '<br/>***********************************<br />'; } } if(file_exists('test10_12.xml')) { $xml = simplexml_load_file('test10_12.xml'); //利用xpath方法查找节点位置 $query = $xml->xpath('//title[@name="t1"]/ancestor::item'); var_dump($query); l(); //测试在title节点下新增子节点new $query[0]->title->addChild('new','new'); //测试在title节点下新增属性fuck $query[0]->title->addAttribute('fuck','fuck you'); //测试修改content节点值为hello,world $query[0]->content = 'hello,world'; //不解释,你懂的 $query[0]->asXML("10.xml"); } ?>