万能分页显示上一页下一页

<?php

$count = count($list);//记录总条数

$page_size = 12; //每页显示条数

$page_all = ceil($count/$page_size);//总页数

@$page = $_GET['page'] ? $_GET['page'] :1; //当前页数

$page_up = $page-1 > 1 ?$page-1 :1; //上一页

$page_next = $page+1 > $page_all ?$page_all :$page+1;//下一页

$key = ($page-1)*$page_size;

for($i = 0; $i < $page_size; $i++){

if(!isset($list[($page - 1) * $page_size + $i]))break;

echo "<li class='imagetype_li' style='padding-right:0px;'>

<a href='xiangqing.php?id={$arry[($page - 1) * $page_size + $i]['GID']}'>

<img style='border:1px solid #ccc;width:150px;height:112px'; src='images/{$arry[($page - 

1) * $page_size + $i]['url']}'/></a>        

<h5><a>{$arry[($page - 1) * $page_size + $i]['name']}</a></h5><>";

}

echo "</ul><br class='clear' /></div></div></div></div></div><div class='websiteMain1'><a 

href='yangpingzhanshi.php?page=1&lei={$lei}'>首页 </a><a href='yangpingzhanshi.php?page=

{$page_up}&lei={$lei}'> 上一页 </a><a href='yangpingzhanshi.php?page={$page_next}&lei=

{$lei}'> 下一页 </a><span> 共 {$page_all} 页 </span><span> 第 {$page} 页 </span>";     

?>