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Homephp教程php手册ADODB和SMARTY结合的分页类

ado|分页

/*
+-----------------------------------------------------------------------+
| 作者:一天空一(曾用名:亿时代网络)
| 网址:www.phpwb.com www.esdwl.com
| Q Q: 31769416
| 时间:2006-05-03                                 
|+-----------------------------------------------------------------------+
*/
    class show_Pager
    {
      protected  $_total;                          //记录总数
      protected  $pagesize;                       //每一页显示的记录数
      public     $pages;                         //总页数
      protected  $_cur_page;                    //当前页码
      protected  $offset;                      //记录偏移量
      protected  $pager_Links;                //url连接
      protected  $pernum = 5;                //页码偏移量,这里可随意更改
   
      public function __construct($total,$pagesize,$_cur_page)
        {   
        $this->_total=$total;
        $this->pagesize=$pagesize;
        $this->_offset();
        $this->_pager();
        $this->cur_page($_cur_page);
        $this->link();
    }
   
    public  function _pager()//计算总页数
    {
    return $this->pages = ceil($this->_total/$this->pagesize);
    }
   
   
    public function cur_page($_cur_page) //设置页数
    {     
               if (isset($_cur_page))
           {
           $this->_cur_page=intval($_cur_page);
           }
           else
           {
            $this->_cur_page=1; //设置为第一页
           }
        return  $this->_cur_page;
   }
   
//数据库记录偏移量
   public function _offset()
   {
   return $this->offset=$this->pagesize*($this->_cur_page-1);
   }
   
  //html连接的标签
  public function link()
  {
    if ($this->_cur_page == 1 && $this->pages>1)
        {
            //第一页
            $this->pager_Links = "首 页 | 上一页 | _cur_page+1).">下一页 | pages>尾 页";
        }
        elseif($this->_cur_page == $this->pages && $this->pages>1)
        {
            //最后一页
             $this->pager_Links = "首 页 | _cur_page-1).">上一页 | 下一页 | 尾 页";
        }
        elseif ($this->_cur_page > 1 && $this->_cur_page pages)
        {
            //中间
             $this->pager_Links = "首 页 | _cur_page-1).">上一页 | _cur_page+1).">下一页 | pages>尾 页";
        }
        return $this->pager_Links;
  }
  
  //html数字连接的标签
   public function num_link()
  {
       $setpage  = $this->_cur_page ? ceil($this->_cur_page/$this->pernum) : 1;
        $pagenum   = ($this->pages > $this->pernum) ? $this->pernum : $this->pages;
        if ($this->_total  pagesize) {
            $text  = '只有一页';
        } else {
            $text = '页数:'.$this->pages.' '.$this->pagesize.'个/页 ';
            if ($this->_cur_page > 1) {
                $text .= '[1]..';
            }
            if ($setpage > 1) {
                $lastsetid = ($setpage-1)*$this->pernum;
                $text .= '[';
            }
            if ($this->_cur_page > 1) {
                $pre = $this->_cur_page-1;
                $text .= '
[';
            }
            $i = ($setpage-1)*$this->pernum;
            for($j=$i; $jpages; $j++) {
                $newpage = $j+1;
                if ($this->_cur_page == $j+1) {
                    $text .= '['.($j+1).']';
                } else {
                    $text .= '
['.($j+1).']';
                }
            }            
            if ($this->_cur_page pages){
                $next = $this->_cur_page+1;
                $text .= '[>]';
            }
            if ($setpage _total) {
                $nextpre = $setpage*($this->pernum+1);
                if($nextprepages)
                $text .= '[>>]';
            }
            if ($this->_cur_page pages) {
                $text .= '..pages.'>['.$this->pages.']';
            }
         }
            return $text;
         }
    }
//$conn,$tpl 全局变量 传入 $table是数据表 $where 是条件语句 $order 是ADSC之类的,$pager_size是每页显示数,$pager是当前页
//返回后在摸板里面可以直接使用
  
数字标签用
    class my_Pager extends show_Pager
    {
        function __construct($table,$where,$order,$pager_size,$pager)
        {
         global $conn;
         global $tpl;
         $sql="SELECT * FROM `$table` $where order by $order desc";
         $nums=$conn->Execute($sql)->RecordCount();
         $pager=new show_Pager($nums,$pager_size,$pager);
         $show=$conn->SelectLimit($sql,$pager_size,$pager->_offset())->GetAll();
         $tpl->assign("numlink",$pager->num_link());//数字标签
         $tpl->assign("show",$show);//显示帖子
        }
    }
?>



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