php 如何修改、增加xml结点属性

1、xml文件：<?xml version="1.0" encoding="UTF-8" ?>稆糨孝汶;<clientSet><server url="192.168.0.180" port="1935" /><rootPath value="" /><homePath value="http://www.aaa.com" /><helpPath value="help.html" /><language value="en" /><theme value="default" /><visibleMarquee value = "true" /><visibleWhitePaper value="true" /><showMemberRoomForGuest value = "true" /><emotions enabled="true" column="5" autoPlay="false"><item name="Birthday" src="cartoon/movie/birthday.swf" thumb="cartoon/preview/birthday-small.swf" duration="15"/><item name="Boom" src="cartoon/movie/boom.swf" thumb="cartoon/preview/boom-small.swf" duration="6"/><item name="Bubble" src="cartoon/movie/bubble.swf" thumb="cartoon/preview/bubble-small.swf" duration="7.5"/><item name="Cry" src="cartoon/movie/cry.swf" thumb="cartoon/preview/cry-small.swf" duration="5.4"/><item name="Doggie" src="cartoon/movie/doggie.swf" thumb="cartoon/preview/doggie-small.swf" duration="13"/><item name="Greeting" src="cartoon/movie/greeting.swf" thumb="cartoon/preview/greeting-small.swf" duration="7.4"/><item name="Football" src="cartoon/movie/football.swf" thumb="cartoon/preview/football-small.swf" duration="2.2"/></emotions ></clientSet>

2、php代码：<?$dom=new DOMDocument('1.0');$dom->load('x.xml');$em=$dom->getElementsByTagName('emotions');$em=$em->item(0);$items=$em->getElementsByTagName('item');foreach($items as $a){foreach($a->attributes as $b){if($b->nodeValue=='Birthday'){$a->setAttribute('name','nBirthday');}}}$t=$dom->createElement('item');$t->setAttribute('name','x');$t->setAttribute('src','www.baidu.com');$t->setAttribute('duration','duration');$em->appendChild($t);$dom->save('x.xml');?>

3、PHP解析XML文档属性并编辑：<?php//读取xml$dom=new DOMDocument('1.0');$dom->load('data.xml');$em=$dom->getElementsByTagName('videos');//最外层节点$em=$em->item(0);$items=$em->getElementsByTagName('video');//节点//如果不用读取直接添加的话把下面这一段去掉即可foreach($items as $a){foreach($a->attributes as $b){//$b->nodeValue;节点属性的值$b->nodeName;节点属性的名称echo $b->nodeName;echo ":";echo $b->nodeValue;echo "<br/>";}}//下面是往xml写入一行新的$t=$dom->createElement('video');//<video$t->setAttribute('title','1');//<video name="data"$t->setAttribute('src','2');//<video name="data" src="2"$t->setAttribute('img','1');//<video name="data" img="1"$em->appendChild($t);//<video name="data" img="1"/>$dom->save('data.xml');?> 当时的xml文档:<?xml version="1.0"?><videos><video img="a" url="1" title="1" nickname="1" tag="1" vid="1" star="1"/><video img="b" url="2" title="2" nickname="2" tag="2" vid="2" star="2"/><video img="c" url="3" title="3" nickname="3" tag="3" vid="3" star="3"/><video title="d" src="2" img="1"/></videos>

4、//下面这一个文件是后改的可以修改xml：<?php$doc = new DOMDocument();$doc->load('data.xml');//查找 videos 节点$root = $doc->getElementsByTagName('videos');//第一个 videos 节点$root = $root->item(0);//查找 videos 节点下的 video 节点$userid = $root->getElementsByTagName('video');//遍历所有 video 节点foreach ($userid as $rootdata){//遍历每一个 video 节点所有属性foreach ($rootdata->attributes as $attrib){$attribName = $attrib->nodeName; //nodeName为属性名称$attribValue = $attrib->nodeValue; //nodeValue为属性内容//查找属性名称为ip的节点内容if ($attribName =='img'){//查找属性内容为ip的节点内容if ($attribValue =='1'){//将属性为img，img内容为1的修改为image;$rootdata->setAttribute('img','image');$doc->save('data.xml');}}}} ?>