Posted in PHP onDecember 19, 2010
共分四个文件,分别是创建、增加、删除、修改四个功能,变量都是写死的,改一改用$_POST方式接收就可以用了
//index.php 创建功能
<?php $xmlpatch = 'index.xml'; $_id = '1'; $_title = 'title1'; $_content = 'content1'; $_author = 'author1'; $_sendtime = 'time1'; $_htmlpatch = '1.html'; 3water.com$doc = new DOMDocument('1.0', 'utf-8'); $doc -> formatOutput = true; 3water.com$root = $doc -> createElement('root');//新建节点 3water.com$index = $doc -> createElement('index');//新建节点 3water.com$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 3water.com$id = $doc -> createAttribute('id'); $newsid = $doc -> createTextNode($_id); $id -> appendChild($newsid); 3water.com$title = $doc -> createAttribute('title'); $newstitle = $doc -> createTextNode($_title); $title -> appendChild($newstitle); 3water.com$content = $doc -> createTextNode($_content);//节点值 3water.com$author = $doc -> createAttribute('author'); $newsauthor = $doc -> createTextNode($_author); $author -> appendChild($newsauthor); 3water.com$sendtime = $doc -> createAttribute('time'); $newssendtime = $doc -> createTextNode($_sendtime); $sendtime -> appendChild($newssendtime); 3water.com$index -> appendChild($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); 3water.com$root -> appendChild($index);//设置index为root字节点 3water.com$doc -> appendChild($root);//设置root为跟节点 3water.com$doc -> save($xmlpatch);//保存文件 3water.comecho $xmlpatch . ' has create success'; 3water.com?> 3water.com<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>XML操作</title> </head> 3water.com<body> </body> </html>
//add.php 增加功能(跟index.php文件差不多,主要就是加个load载入跟 $root = $doc -> documentElement获得跟节点
<?php $xmlpatch = 'index.xml'; $_id = '2'; $_title = 'title2'; $_content = 'content2'; $_author = 'author2'; $_sendtime = 'time2'; $_htmlpatch = '2.html'; 3water.com$doc = new DOMDocument(); $doc -> formatOutput = true; if($doc -> load($xmlpatch)) { $root = $doc -> documentElement;//获得根节点(root) $index = $doc -> createElement('index'); 3water.com$url = $doc -> createAttribute('url'); $patch = $doc -> createTextNode($_htmlpatch); $url -> appendChild($patch); 3water.com$id = $doc -> createAttribute('id'); $newsid = $doc -> createTextNode($_id); $id -> appendChild($newsid); 3water.com$title = $doc -> createAttribute('title'); $newstitle = $doc -> createTextNode($_title); $title -> appendChild($newstitle); 3water.com$content = $doc -> createTextNode($_content); 3water.com$author = $doc -> createAttribute('author'); $newsauthor = $doc -> createTextNode($_author); $author -> appendChild($newsauthor); 3water.com$sendtime = $doc -> createAttribute('time'); $newssendtime = $doc -> createTextNode($_sendtime); $sendtime -> appendChild($newssendtime); 3water.com$index -> appendChild($id); $index -> appendChild($title); $index -> appendChild($content); $index -> appendChild($url); $index -> appendChild($author); $index -> appendChild($sendtime); 3water.com$root -> appendChild($index); 3water.com$doc -> save($xmlpatch); 3water.comecho $_id . ' has been added in ' . $xmlpatch; 3water.com} else { echo 'xml file loaded error!'; } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>XML操作-添加</title> </head> 3water.com<body> </body> </html>
//edit.php 修改功能(这里只修改title属性值 跟节点值)
<?php $xmlpatch = 'index.xml'; $_id = '2'; $_title = 'has been changed'; $_content = 'has been changed'; 3water.com$doc = new DOMDocument(); $doc -> formatOutput = true; 3water.comif($doc -> load($xmlpatch)) { $root = $doc -> documentElement; $elm = $root -> getElementsByTagName('index'); $checkexist = 0; foreach ($elm as $new) { if($new -> getAttribute('id') == $_id) { $new -> setAttribute('title', $_title); $new -> nodeValue = $_content;//修改节点值,真是太意外了,没想到跟JS一样直接能赋值... //$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!'; } 3water.com?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>XML操作-修改</title> </head> 3water.com<body> </body> </html>
//del.php 删除功能
<?php $xmlpatch = 'index.xml'; $_id = '2'; 3water.com$doc = new DOMDocument(); $doc -> formatOutput = true; if($doc -> load($xmlpatch)) { $root = $doc -> documentElement; $elm = $root -> getElementsByTagName('index'); foreach ($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!'; } 3water.com?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>XML操作-删除</title> </head> 3water.com<body> </body> </html>
3water.com
总结一下,创建跟添加主要用的就是create跟appendChild,create后边跟Element就是创建节点,跟Attribute就是创建属性,TextNode就是创建值,然后appendChild就是设置从属关系,这么一看非常简单。删除与修改都是用先获得节点列表getElementsByTagName然后foreach遍历想要修改的节点.
php中DOMDocument简单用法示例代码(XML创建、添加、删除、修改)
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