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原创一个PHP分页类（类似于Discuz!分页效果）

上一篇 / 下一篇 2006-12-06 17:47:57 / 个人分类：PHP编程

<?php
class Page{
 var $pagesize;
 var $numrows;
 var $pages;
 var $page;
 var $offset;
 var $url;
 function pagedate($str1,$str2,$str3){
 global $pagesize,$offset;
 $this->pagesize = $str1;
 $this->numrows = $str2;
 $this->url = $str3;
 $this->pages = intval($this->numrows/$this->pagesize);
 if($this->numrows%$this->pagesize){
 $this->pages ++;
 }
 $nPage = $_GET['page'];
 if($nPage != null && !preg_match("/^\d+$/",$nPage)){
 echo("错误的参数类型！");
 return false;
 }
 if(isset($nPage)){
 $this->page = intval($nPage);
 }
 else{
 $this->page = 1;
 }
 if($nPage < 1 || $nPage > $this->pages){
 $this->page = 1;
 }
 $this->offset = $this->pagesize * ($this->page - 1);
 $pagesize = $this->pagesize;
 $offset = $this->offset;
 }
 function pageshow(){
 echo "[" . $this->numrows . "][" . $this->page . "/" . $this->pages . "]";
 if($this->page > 4){
 echo "<a href='" . $this->url . "=1'>7</a>";
 }
 if($this->page != 1){
 $pageup = $this->page - 1;
 echo "<a href='" . $this->url . "=" . $pageup . "'>3</a>";
 }
 if($this->page <= 3){
 for($i = 1 ; $i <= 10 ; $i ++){
 if($i <= $this->pages){
 if($i == $this->page){
 echo "[" . $i . "]";
 }
 else{
 echo "[<a href='" . $this->url . "=" . $i . "'>" . $i . "</a>]";
 }
 }
 }
 }
 else if($this->page >= $this->pages-6){
 for($i = $this->pages-9 ; $i <= $this->pages ; $i ++){
 if($i == $this->page){
 echo "[" . $i . "]";
 }
 else{
 echo "[<a href='" . $this->url . "=" . $i . "'>" . $i . "</a>]";
 }
 }
 }
 else{
 for($i = $this->page-3 ; $i <= $this->page+6 ; $i ++){
 if($i == $this->page){
 echo "[" . $i . "]";
 }
 else{
 echo "[<a href='" . $this->url . "=" . $i . "'>" . $i . "</a>]";
 }
 }
 }
 if($this->page != $this->pages && $this->pages != 0){
 $pagedown = $this->page + 1;
 echo "<a href='" . $this->url . "=" . $pagedown . "'>4</a>";
 }
 if($this->page < $this->pages-6){
 echo "<a href='" . $this->url . "=" . $this->pages . "'>8</a>";
 }
 }
}
?>

$showpage = new Page;
//参数依次为：每页记录数，总记录数，URL地址
$showpage->pagedate(20,$crs[0],"?list.php?page");
//这里写查询语句， limit $offset,$pagesize
//分页效果
$showpage->pageshow();