新做的一个PHP分页类，如：|> >>|

新做的一个类，比较实用~~样式如下：

|<< << 1 2 3 4 5 6 7 8 >> >>|

大家觉得有用可以带走~~呵呵……

<?php

/***************************
* 一个非常实用个性的分页类 *
****************************

*****************************实例***********************************
 if(!isset($_GET['page'])){$page = 0;}else{$page = $_GET['page'];}
 $pagedemo = new pageclass;
 $pagedemo->set_sql("SELECT * FROM `demo` ORDER BY `id` DESC");
 $pagedemo->set_params("type=".$type."");
 $pagedemo->set_setpage($page);
 $pagedemo->set_pagesize(10);
 $pagedemo->set_filename("demo.php");
 $pagedemo->set_pagenumber(5);
 $pagedemo->show(); 
 $result=$pagedemo->result;
 $n=0;
  while ($row=mysql_fetch_row($result)){
   $n++;     
    echo "内容";
  }
  $pagedemo->showpage();
*******************************************************************/

class pageclass
{
 /****声明****/
 var $sqlstr,$filename,$params,$initfirstpage;
 var $pagestart,$pagenumber,$pagesize,$i;
 var $firstpage,$prevpage,$nextpage,$lastpage;
 var $totallines,$maxpage,$totalpages,$result;
 var $page,$final,$getpage,$param,$paramlist;
 
 /****构造函数****/
 function pageclass()
 {
  $this->set_initfirstpage("仅此一页"); // 设置只有一页时显示的文字；
  $this->set_setpage(0);                // 设置默认第一页为0；
  $this->set_pagesize(10);              // 设置默认记录数为10；
  $this->set_params("");                // 设置默认参数列表为空；
  $this->set_pagestart(0);              // 设置默认分页起始数为0；
  $this->set_pagenumber(5);             // 设置默认每页显示页数为5；
  $this->set_firstpage("|<<");          // 设置默认上N页表示字符为|<<；
  $this->set_prevpage("<<");            // 设置默认上一页表示字符为<<;
  $this->set_nextpage(">>");            // 设置默认下一页表示字符为>>;
  $this->set_lastpage(">>|");           // 设置默认下N页表示字符为>>|;
 }
 
 /*****设置SQL查询语句****/
 function set_sql($sqlstr)
 {
  $this->sqlstr = $sqlstr;
 }
 
 /****设置每页显示记录数****/
 function set_pagesize($pagesize)
 {
  $this->pagesize = $pagesize;
 }
 
 /****设置文件名称****/
 function set_filename($filename)
 {
  $this->filename = $filename;
 }
 
 /****设置参数列表(可设多项)****/
 function set_params($params)
 {
  $this->params = $params;
 }
 
 /****设置页面开始数(默认为0)****/
 function set_pagestart($pagestart)
 {
  $this->pagestart = $pagestart;
 }
 
 /****设置每页显示页数****/
 function set_pagenumber($pagenumber)
 {
  $this->pagenumber = $pagenumber;
 }
 
 /****设置首页图标或字符****/
 function set_firstpage($firstpage)
 {
  $this->firstpage = $firstpage;
 }
 
 /****设置上一页图标或字符****/
 function set_prevpage($prevpage)
 {
  $this->prevpage = $prevpage;
 }
 
 /****设置下一页图标或字符****/
 function set_nextpage($nextpage)
 {
  $this->nextpage = $nextpage;
 }
 
 /****设置末页图标或字符****/
 function set_lastpage($lastpage)
 {
  $this->lastpage = $lastpage;
 }
 
 /****设置总页数为一页时显示的文字****/
 function set_initfirstpage($initfirstpage)
 {
  $this->initfirstpage = $initfirstpage;
 }
 
 /****取得当前页数****/
 function set_setpage($getpage)
 {
  $this->getpage = $getpage;
 }
 
 /****取出数据集****/
 function show()
 {
  $this->final = '';
  $this->param = preg_replace("/&?page=[0-9]*&?/", '', $this->params);
  $this->totallines = mysql_num_rows(mysql_query($this->sqlstr));
  if(isset($this->totallines))
  {
   $this->totalpages = ceil($this->totallines / $this->pagesize);
  }else{
   $this->totalpages = 1;
  }
  $this->result = mysql_query($this->sqlstr." limit ".$this->getpage * $this->pagesize .", ". $this->pagesize);
 }
 
 /****显示分页****/
 function showpage()
 {
  if($this->totalpages > $this->pagenumber && $this->getpage > $this->pagenumber - 1)
  {
   $this->paramlist = '?page='.($this->getpage - $this->pagenumber);
   $this->paramlist .= "&".$this->param;
   $this->final .= "<a href=./".$this->filename.$this->paramlist.">".$this->firstpage."</a> ";
   $this->pagestart = intval($this->getpage / $this->pagenumber) * $this->pagenumber;
  }else $this->final .= $this->firstpage." ";
  if($this->getpage)
  {
   $this->paramlist  = '?page='.($this->getpage - 1);
   $this->paramlist .= "&".$this->param;
   $this->final .= "<a href=./".$this->filename.$this->paramlist.">".$this->prevpage."</a> "; 
  } else $this->final .= $this->prevpage." "; 
  if($this->totalpages < $this->pagenumber)
  {
   $this->maxpage = $this->totalpages;
  }else{
   $this->maxpage = $this->pagenumber;
  }
  for($this->i = $this->pagestart, $this->paramlist = '', $this->maxpage += $this->pagestart; $this->i < $this->maxpage; $this->i ++) {
   $this->paramlist .= '?page='.$this->i;
   $this->paramlist .= "&".$this->param;
   if($this->i != $this->getpage)
   {
    $this->final .= "<a href=./".$this->filename.$this->paramlist.">".($this->i + 1).'</a> ';
   }else{
    $this->final .= "<a href=./".$this->filename.$this->paramlist."><strong>".($this->i + 1).'</strong></a> ';
   }
   $this->paramlist = '';
  }
  if((++ $this->getpage)< $this->totalpages)
  {
   $this->paramlist  = "?page=".$this->getpage;
   $this->paramlist .= "&".$this->param;
   $this->final .= "<a href=./".$this->filename.$this->paramlist.">".$this->nextpage."</a> "; 
  } else $this->final .= " ".$this->nextpage;
  $this->getpage --;
  if(($this->getpage + $this->pagenumber) < $this->totalpages)
  {
   $this->paramlist = '?page='.($this->getpage + $this->pagenumber);
   $this->paramlist .= "&".$this->param;
   $this->final .= " <a href=./".$this->filename.$this->paramlist.">".$this->lastpage."</a>";
  } else $this->final .= " ".$this->lastpage;
  if($this->maxpage == 1) $this->final = $this->initfirstpage;
  print $this->final;
 }
 
}

?>