<!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>php数据库查询</title>
</head>
<body>
<?php
function genpage(&$sql,$page_size=12)
{
global $prepage,$nextpage,$pages,$sums; //out param
$page = $_GET["page"];
$eachpage = $page_size;
$pagesql = strstr($sql," from ");
$pagesql = "select count(*) as ids ".$pagesql;
$result = mysql_query($pagesql) or die(mysql_error());
if($rs = mysql_fetch_array($result)) $sums = $rs[0];
$pages = ceil(($sums-0.5)/$eachpage)-1;
$pages = $pages>=0?$pages:0;
$prepage = ($page>0)?$page-1:0;
$nextpage = ($page<$pages)?$page+1:$pages;
$startpos = $page*$eachpage;
$sql .=" limit $startpos,$eachpage ";
}
//显示分页
function showpage()
{
global $page,$pages,$prepage,$nextpage,$queryString; //param from genpage function
$shownum =10/2;
$startpage = ($page>=$shownum)?$page-$shownum:0;
$endpage = ($page+$shownum<=$pages)?$page+$shownum:$pages;
echo "共".($pages+1)."页: ";
if($page>0)echo "<a href=$PHP_SELF?page=0&$queryString>首页</a>";
if($startpage>0)
echo " ... <b><a href=$PHP_SELF?page=".($page-$shownum*2)."&$queryString>«</a></b>";
for($i=$startpage;$i<=$endpage;$i++)
{
if($i==$page) echo " <b>[".($i+1)."]</b> ";
else echo " <a href=$PHP_SELF?page=$i&$queryString>".($i+1)."</a> ";
}
if($endpage<$pages)
echo "<b><a href=$PHP_SELF?page=".($page+$shownum*2)."&$queryString>»</a></b> ... ";
if($page<$pages)
echo "<a href=$PHP_SELF?page=$pages&$queryString>尾页</a>";
}
?>
</body>
</html>
【php+mysql+毕业设计源代码】原创PHP+AJAX留言本_gbook.rar
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【php+mysql+毕业设计源代码】原创PHP+AJAX留言本_gbook.rar （7个子文件） 
【php+mysql+毕业设计源代码】原创PHP+AJAX留言本_gbook [聊天留言]原创PHP+AJAX留言本_gbook gbook 
page.php 2KB error_handler.php 289B guestbook.sql 2KB postdata.php 345B index.php 2KB css.css 925B postdata.js 2KB资源评论
