php+xml留言本，通过php操作xml存储数据
一个php操作xml进行数据存储从而实现php+xml留言本
代码如下：
<?
class Message_XML extends DomDocument{//Message_XML类，继承PHP5的DomDocument类
private $Root;//属性
//方法
public function __construct(){//构造函数
parent:: __construct();
if (!file_exists("message.xml")){//创建或读取存储留言信息的XML文档message.xml
$xmlstr = "<?xml version='1.0' encoding='GB2312'?><message></message>";
$this->loadXML($xmlstr);
$this->save("message.xml");
}
else
$this->load("message.xml");
}
//增加留言
public function add_message($Subject,$Content){//标题，内容
$Root = $this->documentElement;
//获取留言消息
$AutoID =date("Ynjhis");//年月日时分秒
$Node_AutoID= $this->createElement("autoid");
$text= $this->createTextNode(iconv("GB2312","UTF-8",$AutoID));
$Node_AutoID->appendChild($text);
$Node_Subject = $this->createElement("subject");
$text = $this->createTextNode(iconv("GB2312","UTF-8",$Subject));
$Node_Subject->appendChild($text);
$Node_Content = $this->createElement("content");
$text= $this->createTextNode(iconv("GB2312","UTF-8",$Content));
$Node_Content->appendChild($text);
//建立一条留言记录
$Node_Record = $this->createElement("record");
$Node_Record->appendChild($Node_AutoID);
$Node_Record->appendChild($Node_Subject);
$Node_Record->appendChild($Node_Content);
//加入到根结点下
$Root->appendChild($Node_Record);
$this->save("message.xml");
echo "<script>alert('添加成功');location.href='".$_SERVER['PHP_SELF']."'</script>";
}
//删除留言
public function delete_message($AutoID){//根据ID删除
$Root = $this->documentElement;
//查询用户选择删除的留言记录
$xpath = new DOMXPath($this);
$Node_Record= $xpath->query("//record[autoid=$AutoID]");
$Root->removeChild($Node_Record->item(0));
$this->save("message.xml");
echo "<script>alert('删除成功');location.href='".$_SERVER['PHP_SELF']."'</script>";
}
//显示留言
public function show_message(){
$Root = $this->documentElement;
$xpath = new DOMXPath($this);
//查询所有的留言记录
$Node_Record = $this->getElementsByTagName("record");
$Node_Record_Length =$Node_Record->length;
//循环输出其留言标题和内容信息
echo '<div id="messagelist">';
for($i=0;$i<$Node_Record->length;$i++){
$K=0;
foreach ($Node_Record->item($i)->childNodes as $articles){
$Field[$K]=iconv("UTF-8","GB2312",$articles->textContent);
$K++;
}
echo "<div><b>$Field[1]</b>留言说：<b>$Field[2]</b><a href='?Action=update_message&AutoID=$Field[0]'>编辑</a> <a href='?Action=delete_message&AutoID=$Field[0]'>删除</a></div>";
}
echo '</div>';
}
//修改留言
public function update_message($AutoID){//根据ID修改
$Root = $this->documentElement;
$xpath = new DOMXPath($this);
$Node_Record = $xpath->query("//record[autoid=$AutoID]");
$K=0;
foreach ($Node_Record->item(0)->childNodes as $articles){
$Field[$K]=iconv("UTF-8","GB2312",$articles->textContent);//元素的内容
$K++;
}
echo "<form method='post' action='?Action=save_message&AutoID=$AutoID'>";
echo "<div>留言标题：<input type=text name='Subject' value='$Field[1]' size=20></div>";
echo "<div>留言内容：<textarea name='Content' cols=50 rows=5>$Field[2]</textarea></div>";
echo "<div><input type='submit' value='修改留言'></div></form>";
}
//保存留言
public function save_message($AutoID,$Subject,$Content){//ID,标题，内容
$Root = $this->documentElement;
//查询待修改的记录
$xpath = new DOMXPath($this);
$Node_Record = $xpath->query("//record[autoid=$AutoID]");
$Replace[0]=$AutoID;
$Replace[1]=$Subject;
$Replace[2]=$Content;
$K=0;
//修改
foreach ($Node_Record->item(0)->childNodes as $articles){
$Node_newText = $this->createTextNode(iconv("GB2312","UTF-8",$Replace[$K]));
$articles->replaceChild($Node_newText,$articles->lastChild);//***************有点疑问
$K++;
}
echo "<script>alert('修改成功');location.href='".$_SERVER['PHP_SELF']."'</script>";
$this->save("message.xml");
}
//上传留言信息
public function post_message(){
echo "<form method='post' action='?Action=add_message'>";
echo "<div>留言标题：<input type=text name='Subject' size=20></div>";
echo "<div>留言内容：<textarea name='Content' cols=50 rows=5></textarea></div>";
echo "<div><input type='submit' value='添加留言'></div></form>";
}
}//class end
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>PHP+XML留言板</title>
<style>
td,body{font-size:14px}
#messagelist div{
border:#999999 1px dotted;
margin:4px;
padding:6px;}
#messagelist div b{}
#messagelist div a{
float:right;
margin-top:-20px;
color:#000000;
margin-right:4px;}
#messagelist div a:hover{ background:#FF0000;}
</style>
</head>
<body>
<div align="center"><a href="?Action=post_message">发表留言</a>^_^<a href="?Action=show_message">显示留言</a></div>
<?php
//使用Message_XML类完成留言板
$HawkXML = new Message_XML;//创建一个实例
$Action ="";
if(isset($_GET['Action']))
$Action = $_GET['Action'];
switch($Action){
case "show_message": //查看
$HawkXML->show_message();
break;
case "post_message"://提交
$HawkXML->post_message();
break;
case "add_message"://增加
$HawkXML->add_message($_POST['Subject'],$_POST['Content']);
break;
case "delete_message"://删除
$HawkXML->delete_message($_GET["AutoID"]);
break;
case "update_message"://修改
$HawkXML->update_message($_GET["AutoID"]);
break;
case "save_message"://保存
$HawkXML->save_message($_GET["AutoID"],$_POST['Subject'],$_POST['Content']);
break;
default://默认查看
$HawkXML->show_message();
break;
}
?>
</body>
</html>
写成类了
不错，不错
恭喜你中奖了，被点名了，楼上的也是哦！嘿！http://www.ngshaozhu.com/2009/07/15/dmyx.html
我接了 南宫少主的了
你接我吧 在首页
@ngshaozhu,houkai 在下已经完美的做好题啦了，呵呵，好玩！！
我功夫还不行啊，用OOP就写不来...
@小明猪 有了模版，拿过来用就行~