php数据分页显示

<!--
分页插件的使用
$p=new Page();
$p->init_pagedate($counts, $pagesize, $page, $url);//$counts 查询记录数 / $pagesize每页显示记录数 / $page当前页码 / url 页码指向的地址
$p->pageshow();
-->

<style type="text/css">
#pages{
font:9pt Verdana,Tahoma;
color:#625F5F;
}

#pages a {
margin:3px;
padding:3px;
color:#175CBB;
border:1px dashed #D5E4F4;
background:#F4FAFF;
text-decoration: none;
}

#pages a:hover {
border:1px solid #7AB7F3;
color:#fff;
background:#7AB7F3;
text-decoration:none;
}

#pages span {
margin:3px;
padding:3px;
color:#fff;
background:#7AB7F3;
}

</style>
<?php
/**
* 分页类
*/
class Page
{
var $records; //需要分页显示的数据记录数
var $pagesize;//页面显示记录数,默认10条
var $page;//当前页码,默认是第1页
var $pages=1;//总页数
var $offset=0;//位移,数据库默认从第0条记录开始：select * from tablename limit 0, 10
var $url;//页面地址

/**
* $pagesize\$records记录总数\$url\$page当前页码
*/
function init_pagedata($records=0, $pagesize=10, $page=1, $url)//创建页面数据
{
$this->records = $records;
$this->pagesize = $pagesize;
$this->page = $page;
$this->url = $url;
$this->pages = $records%$pagesize==0 ? intval($records/$pagesize) : (intval($records/$pagesize))+1;
$this->offset = ($page-1) * $pagesize;
}

function pageshow()//分类功能
{
echo "<div id=\"pages\">";
echo "留言总数：". $this->records . "条&nbsp;&nbsp;&nbsp; 第[".$this->page."/".$this->pages."]页 ";
if ($this->page > 4) {//首页
$this->firstSign();
}
if($this->page != 1){//上一页
$this->preSign();
}

if ($this->pages<=10) {
for ($i=1; $i <=$this->pages ; $i++) {
$this->numshow($i);
}
}
else
{
if ($this->page <= 3) {
for ($i=1; $i <=10 ; $i++) {
$this->numshow($i);
}
}
else
{
if ($this->page+6 > $this->pages) {
$firststation = $this->pages - 10;
for ($i=$firststation; $i <= $this->pages; $i++) {
$this->numshow($i);
}
}
else
{
$firststation = $this->page - 3;
$laststation = $this->page + 6;

for ($i=$firststation; $i <= $laststation; $i++) {
$this->numshow($i);
}
}
}
}
if($this->page != $this->pages && $this->pages != 0){//下一页
$this->nextSign();
}
if ($this->page < $this->pages-6) {
$this->lastSign();
}
echo "</div>";
}

function echoAlink($page)//输出a标签
{
echo "<a href='". $this->url."?page=".$page."'>".$page."</a>";
}
function echoSpan($page)//输出span标签
{
echo "<span>".$page."</span>";
}
function numshow($i)
{
if ($this->page==$i) {
$this->echoSpan($i);
}
else
{
$this->echoAlink($i);
}
}
function firstSign()//首页
{
echo "<a href='". $this->url."?page=1' style='font-family:webdings;'>7</a>";
}
function preSign()//上一页
{
echo "<a href='". $this->url."?page=".($this->page-1)."' style='font-family:webdings;'>3</a>";
}
function nextSign()//下一页
{
echo "<a href='". $this->url."?page=".($this->page+1)."' style='font-family:webdings;'>4</a>";
}
function lastSign()//尾页
{
echo "<a href='". $this->url."?page=".$this->pages."' style='font-family:webdings;'>8</a>";
}
}

?>