php xml留言板 xml存储数据的简单例子- PHP

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PHP 中的 php xml留言板 xml存储数据的简单例子

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-13 浏览: 187 ::

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建站常用13种PHP开源CMS比较 PHP 开源AJAX框架14种

php xml留言板 xml存储数据的简单例子 php操作xml的简单留言板，带分页，仅供参考类文件 : _class.xmldb.inc.php

复制代码代码如下:

 
<?php 
class xmldb extends DOMDocument{ 
 var $xmldb; 
 public function __construct($xmldbname){ 
 $this->xmldb=$xmldbname; 
 if(!file_exists($this->xmldb)){ 
 $initxmldb = "<?xml version=\"1.0\" encoding=\"utf-8\"?><Message></Message>"; 
 $this->loadXML($initxmldb); 
 $this->save($this->xmldb); 
 }else{ 
 $this->load($this->xmldb); 
 } 
 } 
 public function insert_message($nickname,$message){ 
 $messagedom = $this->getElementsByTagName("Message"); 
 $subnode = $this->createElement("Rows"); 
 $nicknamenode = $this->createElement("Nickname"); 
 $nicknamenode -> appendChild($this->createTextNode($nickname)); 
 $subnode -> appendChild($nicknamenode); 
 $contentnode = $this->createElement("Content"); 
 $contentnode -> appendChild($this->createTextNode($message)); 
 $subnode -> appendChild($contentnode); 
 $timernode = $this->createElement("Timer"); 
 $timernode -> appendChild($this->createTextNode(time())); 
 $subnode -> appendChild($timernode); 
 $messagedom->item(0)->appendChild($subnode); 
 $this->saveXML(); 
 $this->save($this->xmldb); 
 } 
 function get_node_length($nodename){ 
 $odom = $this->getElementsByTagName($nodename); 
 return $odom->length; 
 } 
 public function get_message_list($start,$rowscount,$pagesize){ 
 $end = $rowscount > $pagesize ? $start+$pagesize : $rowscount; 
 $k = 0; 
 for($i = $start; $i < $end; $i++){ 
 $rowslist[$k]["Nickname"] = $this->getElementsByTagName("Nickname")->item($i)->nodeValue; 
 $rowslist[$k]["Content"] = $this->getElementsByTagName("Content")->item($i)->nodeValue; 
 $rowslist[$k]["Timer"] = $this->getElementsByTagName("Timer")->item($i)->nodeValue; 
 $k++; 
 } 
 return $rowslist; 
 } 
 public static function splitpage($pageall,$page=1,$urled=null,$strpage = "page",$pageaverage = 10){ 
 $pageaverage -= 1; 
 $page = intval($page >=1 ? $page : 1 ); 
 $page = $page > $pageall ? $pageall : $page; 
 $startpage = $page - $pageaverage > 0 ? $page - ceil(($pageaverage / 2)):1; 
 $startpage = ($page + ceil($pageaverage/2) > $pageall)?$pageall-$pageaverage:$startpage; 
 $startpage = $startpage > 0 ? $startpage : 1; 
 $stoppage = $startpage+$pageaverage >$pageall?$pageall:$startpage+$pageaverage; 
 if(empty($urlfile)){ $urlfile=$_SERVER["PHP_SELF"]; } 
 if(!strrpos($urlfile,'?')) $urled .= '?'; 
 foreach($_GET as $k => $v) 
 { 
 $urled = ($k<>$strpage) ? $urled.$k.'='.urlencode($v).'&' : $urled; 
 } 
 if ($page>1){ 
 $mess ="<a href="".$urled.$strpage."=1" href="".$urled.$strpage."=1">首页</a> "; 
 $mess .="<a href="".$urled.$strpage."=".($page-1)."" href="".$urled.$strpage."=".($page-1)."">上一页 </a>"; 
 }else{ 
 $mess ="首页 "; 
 $mess .="上一页 "; 
 } 
 if($page > 9){ 
 $startpage = $page - 9; 
 } 
 $stoppage = $startpage + 9 >= $pageall ? $pageall : $startpage + 9; 
 for($i= $startpage; $i<= $stoppage ;$i++) 
 { 
 if($i<= $pageall && !($page==$i)) 
 $mess .= "<a href="".$urled.$strpage."=".$i."" href="".$urled.$strpage."=".$i."">".$i."</a> "; 
 else 
 $mess .= "".$i." "; 
 } 
 if ($page < $pageall){ 
 $mess .=" <a href="".$urled.$strpage."=".($page+1)."" href="".$urled.$strpage."=".($page+1)."">下一页</a>"; 
 $mess .=" <a href="".$urled.$strpage."=".$pageall."" href="".$urled.$strpage."=".$pageall."">尾页</a>"; 
 }else{ 
 $mess .=" 下一页"; 
 $mess .=" 尾页"; 
 } 
 return $mess; 
 } 
} 
?> 

调用文件 : index.php

复制代码代码如下:

 
<?php 
require("_class.xmldb.inc.php"); 
$xmldb = new xmldb("./my_xmldb.xml"); 
if(isset($_POST["btnform1"])){ 
 $xmldb -> insert_message($_POST["nickname"],$_POST["content"]); 
} 
$pagesize = 3; 
$page = !empty($_GET['page']) ? intval($_GET['page']) : 1; 
$rowscount = $xmldb -> get_node_length("Rows"); 
$pagecount = ceil($rowscount/$pagesize); 
$start = ($page-1)*$pagesize > $rowscount ? $rowscount : ($page-1)*$pagesize; 
$rowslist = $xmldb -> get_message_list($start,$rowscount,$pagesize); 
?> 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 
<HTML> 
<HEAD> 
<meta http-equiv="content-type" content="text/html;charset=utf-8"> 
<TITLE> New Document </TITLE> 
 <style type='text/css'><!-- 
 #messagelist ul li{ float:left;list-style-type:none; } 
--></style><style type='text/css' bogus="1"> #messagelist ul li{ float:left;list-style-type:none; } 
 </style> 
</HEAD> 
<BODY> 
 <div id="messagelist"> 
 <?php 
 if(!empty($rowslist)) 
 { 
 foreach($rowslist as $key => $value) 
 { 
 echo "<ul><li>".$value["Nickname"]." <span>(".date("Y-m-d H:i",$value["Timer"]).")</span></li>"; 
 echo "<li>".$value["Content"]."</li></ul><br>"; 
 } 
 } 
 ?> 
 <div><?=$xmldb -> splitpage($pagecount,$page,'','page',$pagesize)?></div> 
 </div> 
 <div> 
 <form action="" method="post" name="form1"> 
 昵称:<input type="text" name="nickname"><br> 
 内容:<textarea name="content"> 

php操作xml的简单留言板，带分页，仅供参考

建站常用13种PHP开源CMS比较 PHP 开源AJAX框架14种

PHP 中的 php xml留言板 xml存储数据的简单例子

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