经典php分页代码（支持数字偏移)(1/2)

<?php
mysql_connect('localhost','root','');
mysql_select_db('news');
mysql_query('set names gbk');

$sql = mysql_query("select * from `v_char`");
$num = mysql_num_rows($sql);
include 'page.class.php';
/*参数说明：
 *getpages($pagesize,$pagenum,$page,$init,$page_len);
 *$pagesize 每页记录
 *$pagenum 总记录数
 *$page $_get[page]
 *$init 数字分页最小数，默认为1，一般不用更改。
 *$page_len 数字分页的数量。
*/
$model = new getpages(10,$num,$_get['page']);

$sql = "select * from `v_char` limit $model->offset,$model->pagesize";
$res = mysql_query($sql);
while($row = mysql_fetch_assoc($res))
{
 echo $row['id'] . " - " . $row['name'] .'<br>';
}

//输出分页信息
echo $model->getpage();
?>

page.class.php

<?php
/*
 * author：陈凯
 * data：2010-09-14
 */
class getpages
{
 public $pagesize;  //每页记录
 public $offset;    //起始记录数
 public $pagenum;   //总记录
 public $page;      //当前页码
 public $init;      //数字分页最左边数字
 public $page_len;  //数字分页最右边数字
 public $pages;     //总页数
 
 //初始化赋值。
 function __construct($pagesize,$pagenum,$page,$init=1,$page_len=7)
 {
  $this->pagesize = $pagesize;//每页记录
  $this->pagenum  = $pagenum; //总记录
  $this->page     = $page;
  $this->pages    = ceil($this->pagenum/$this->pagesize); //总页数
  if(empty($this->page) || $this->page <1 || $this->page > $this->pages)$this->page=1;
  $this->init     = $init; //数字分页左
  $this->page_len = $page_len;//数字分页右
  $this->offset   = ($this->page-1)*$this->pagesize;
 }
 
 //输出分页
 function getpage()
 {
  $this->prepg = $this->page-1;  //上一页
  $this->nextpg= ($this->page == $this->pages) ? 0 : $this->page+1;  //下一页
//   if($this->pages == 1) return false;  //如果只有一页跳出
  $pagenav = "<span class='divs'>共 ".$this->pages."页".$this->pagenum."条</span>";
   if($this->page == 1)
   {
    $pagenav .="<a href='#' class='div'>首页</a> ";
    $pagenav .="<a href='#' class='div'>上一页</a> ";
   }
   else
   {
     $pagenav .="<a href='".$this->get_url()."=1' class='div'>首页</a> ";
    $pagenav .="<a href='".$this->get_url()."=".$this->prepg."' class='div'>上一页</a> ";  
   }
   
   $pagenav .= $this->getvalpage(); //数字分页
   
   if($this->page == $this->pages)
   {
     $pagenav .="<a href='#' class='div'>下一页</a> ";
    $pagenav .="<a href='#' class='div'>尾页</a> "; 
   }
   else
   {
      $pagenav .="<a href='".$this->get_url()."=".$this->nextpg."' class='div'>下一页</a> ";
    $pagenav .="<a href='".$this->get_url()."=".$this->pages."' class='div'>尾页</a> ";
   }

$files ='<img src="http://img.111cn.net/img/bid_v2/bid_v2_content/p_bid.gif" alt="普通任务" /><img width="272px" height="60px" style="padding-top: 10px;" src="http://img.imgzhubajie.com/img/index_v3/20100611001.gif">';
// 图片地址转换一下   $p=preg_replace('//image//', 'http://qq.ip138.com/image/', $pg[1]);
 $reg = "/<img[^>]*src="(http://(.+)/(.+).(jpg|gif|bmp|bnp))"/isu";
$img=preg_match_all($reg,$files,$imgs);

for ($i=0;$i<count($imgs[0]);$i++)
{

//echo "".$imgs[1][$i]." <br> ";
//保存图片
$opts = array(
  'http'=>array(
    'header'=>"referer: http://www.111cn.net/ "
  )
);
}