<?php$xmlpatch = ‘index.xml‘;$_id = ‘1‘;$_title = ‘title1‘;$_content = ‘content1‘;$_author = ‘author1‘;$_sendtime = ‘time1‘;$_htmlpatch = ‘1.html‘;$doc = new DOMDocument(‘1.0‘, ‘utf-8‘);$doc -> formatOutput = true;$root = $doc -> createElement_x(‘root‘);//新建节点$index = $doc -> createElement_x(‘index‘);//新建节点$url = $doc -> createAttribute(‘url‘);//新建属性$patch = $doc -> createTextNode($_htmlpatch);//新建TEXT值$url -> appendChild($patch);//将$patch文本设为$url属性的值$id = $doc -> createAttribute(‘id‘);$newsid = $doc -> createTextNode($_id);$id -> appendChild($newsid);$title = $doc -> createAttribute(‘title‘);$newstitle = $doc -> createTextNode($_title);$title -> appendChild($newstitle);$content = $doc -> createTextNode($_content);//节点值$author = $doc -> createAttribute(‘author‘);$newsauthor = $doc -> createTextNode($_author);$author -> appendChild($newsauthor);$sendtime = $doc -> createAttribute(‘time‘);$newssendtime = $doc -> createTextNode($_sendtime);$sendtime -> appendChild($newssendtime);$index -> appendChild($id);//将$id设为index节点的属性，以下类同$index -> appendChild($title);$index -> appendChild($content);$index -> appendChild($url);$index -> appendChild($author);$index -> appendChild($sendtime);$root -> appendChild($index);//设置index为root字节点$doc -> appendChild($root);//设置root为跟节点$doc -> save($xmlpatch);//保存文件echo $xmlpatch . ‘ has create success‘;//增加$xmlpatch = ‘index.xml‘;$_id = ‘2‘;$_title = ‘title2‘;$_content = ‘content2‘;$_author = ‘author2‘;$_sendtime = ‘time2‘;$_htmlpatch = ‘2.html‘;$doc = new DOMDocument();$doc -> formatOutput = true;if($doc -> load($xmlpatch)) {    $root = $doc -> documentElement;//获得根节点(root)    $index = $doc -> createElement_x(‘index‘);    $url = $doc -> createAttribute(‘url‘);    $patch = $doc -> createTextNode($_htmlpatch);    $url -> appendChild($patch);    $id = $doc -> createAttribute(‘id‘);    $newsid = $doc -> createTextNode($_id);    $id -> appendChild($newsid);    $title = $doc -> createAttribute(‘title‘);    $newstitle = $doc -> createTextNode($_title);    $title -> appendChild($newstitle);    $content = $doc -> createTextNode($_content);    $author = $doc -> createAttribute(‘author‘);    $newsauthor = $doc -> createTextNode($_author);    $author -> appendChild($newsauthor);    $sendtime = $doc -> createAttribute(‘time‘);    $newssendtime = $doc -> createTextNode($_sendtime);    $sendtime -> appendChild($newssendtime);    $index -> appendChild($id);    $index -> appendChild($title);    $index -> appendChild($content);    $index -> appendChild($url);    $index -> appendChild($author);    $index -> appendChild($sendtime);    $root -> appendChild($index);    $doc -> save($xmlpatch);    echo $_id . ‘ has been added in ‘ . $xmlpatch;} else {    echo ‘xml file loaded error!‘;}//edit.php 修改功能(这里只修改title属性值 跟节点值)$xmlpatch = ‘index.xml‘;$_id = ‘2‘;$_title = ‘has been changed‘;$_content = ‘has been changed‘;$doc = new DOMDocument();$doc -> formatOutput = true;if($doc -> load($xmlpatch)) {    $root = $doc -> documentElement;    $elm = $root -> getElementsByTagName_r(‘index‘);    $checkexist = 0;    //foreach ($elm as $new) {//       if($new -> getAttribute(‘id‘) == $_id) {//            $new -> setAttribute(‘title‘, $_title);        //    $new -> nodeValue = http://www.mamicode.com/$_content;//修改节点值，真是太意外了，没想到跟JS一样直接能赋值...            //$new -> removeChild($new -> nodevalue);          //  $checkexist = 1;    //   }    //}    if($checkexist == 0) {       echo $_id . ‘ is not found in ‘ . $xmlpatch;    } else {       $doc -> save($xmlpatch);       echo $_id . ‘ has been changed‘;    }    } else {    echo ‘xml file loaded error!‘;}//del.php 删除功能$xmlpatch = ‘index.xml‘;$_id = ‘2‘;$doc = new DOMDocument();$doc -> formatOutput = true;if($doc -> load($xmlpatch)) {    $root = $doc -> documentElement;    $elm = $root -> getElementsByTagName_r(‘index‘);    foreach ($elm as $new) {        if($new -> getAttribute(‘id‘) == $_id) {            if($root -> removeChild($new)) {               echo $_id . ‘ has been deleted‘;            } else {               echo $_id . ‘ delete failed‘;            }        }    }    $doc -> save($xmlpatch);} else {    echo ‘xml file loaded error!‘;}?>