php分页类代码与smarty结合使用的例子

<?php
/**
 * 分页类
 */
class Pager {
    var $total; // 记录总数
    var $pageSize; // 每一页显示的记录数
    var $currentPage; // 当前页码
    var $offset; // 记录偏移量
    var $pageTotal; // 总页数
    var $numberOffset = 5; // 页码偏移量
    var $request = ""; // 页面请求参数
//=================
//Fn: Pager
//功能:构造函数
//=================
public function __construct ($total, $pageSize, $currentPage, $request = "") {
 $this->total = $total;
 $this->pageSize = $pageSize;
 $this->pageOffset();
 $this->pageTotal();
 $this->currentPage($currentPage);
 $this->request = $request;
    }
//=================
//Fn: pageOffset
//功能:数据库记录偏移量
//=================
    public function pageOffset() {
 return $this->offset = $this->pageSize * ($this->currentPage - 1);
}
   
//=================
//Fn: pageTotal
//功能:计算总页数
//=================
    public function pageTotal() {
 return $this->pageTotal = ceil($this->total / $this->pageSize);
    }
   
//=================
//Fn: currentPage
//功能:设置页数
//=================
    public function currentPage($currentPage) {
 if (isset($currentPage)) {
     $this->currentPage = intval($currentPage);
 } else {
     $this->currentPage = 1;
 }
 return $this->currentPage;
    }
//=================
//Fn: nextPage
//功能:跳转到下一页
//=================
    public function nextPage() {
 // 显示记录数
 $link = "共{$this->total}条&nbsp;";
 
 // 页码步长
 $stepPage = $this->currentPage ? ceil($this->currentPage / $this->numberOffset) : 1;
 
 // 数字页码设定
 $numberPage = ($this->pageTotal > $this->numberOffset) ? $this->numberOffset : $this->pageTotal;
 
 // 只有一页
 if ($this->total <= $this->pageSize) {
     $link .= "[首页]|[末页]";
 } else {
     // 设置总页数和当前页
     $link .= "第{$this->currentPage}/{$this->pageTotal}页&nbsp;";
    
     // 首页
     $link .= "<a title='首页' href=?pageNo=1{$this->request}>[首页]</a>&nbsp;";
    
     // 下一列
     if ($stepPage > 1) {
  $lastIndex = ($stepPage - 1) * $this->numberOffset;
  $link .= "<a title='上一列' href=?pageNo={$lastIndex}{$this->request}>[<<]</a>";
     }
    
     // 上一页
     if ($this->currentPage > 1) {
  $prePage = $this->currentPage - 1;
  $link .="<a title='上一页' href=?pageNo={$prePage}{$this->request}>[<]</a>";
     }
    
     // 数字页码
     $i = ($stepPage - 1) * $this->numberOffset;
    
     for ($j = $i; $j < ($i + $numberPage) && $j < $this->pageTotal; $j++) {
  $newPage = $j + 1;
  if ($this->currentPage == $j + 1) {
      $link .= "<b>[" . ($j + 1) . "]</b>";
  } else {
      $link .= "<a href=?pageNo={$newPage}{$this->request}>[" . ($j+1) . "]</a>";
  }
     }
     //下一页
     if ($this->currentPage < $this->pageTotal){
  $nextPage = $this->currentPage + 1;
  $link .= "<a title=下一页 href=?pageNo={$nextPage}{$this->request}>[>]</a>";
     }
    
     // 下一列
     if ($stepPage < $this->total) {
  $nextPage = $stepPage * ($this->numberOffset + 1);
  if ($nextPage < $this->pageTotal) {
      $link .= "<a title=下一列 href=?pageNo={$nextpre}{$this->request}>[>>]</a>";
  }
     }
     // 末页
     if ($this->currentPage < $this->pageTotal) {
  $link .= "..<a title=末页 href=?pageNo={$this->pageTotal}{$this->request}>[末页]</a>";
     }
    
 }
 return $link;
    }
}
?>

$cur_page = 1;
if (isset($_GET["pageNo"])) {
  $cur_page = $_GET["pageNo"];
 }

$nums:某数据的总数
$page_size:每页显示数
$cur_page:当前页数
$request:其他Url请求可选参数
$pager = new Pager($nums, $page_size, $cur_page, $request);

$show = 得到要显示的数据
$this->tpl->assign('numlink', $pager->nextPage()); // 得到分页列表
$this->tpl->assign('data',$show);