以前做的一个分页类~~比较普通的那种～～

以前学习时做的，现在也经常用到~~感觉还可以。只是有时候不太方便~~比如做搜索的时候~~有些麻烦~~
呵……其实还是蛮不错的~~

<?php

class Ipagination
{

 var $sqlstr;    //SQL语句;
 var $totalpages; //当前页数;
 var $pagesize;  //每页显示记录数;
 var $totalrecord; //总记录数;
 var $getpage;    //返回的页;
 var $nextpage;  //下一页;
 var $pervpage;  //前一页;
 var $result;      //记录集;
 var $page;        //当前页数；
 
 //构造函数
 function Ipagination()
 {
  $this->pagesize = 10;
  $this->getpage = 1;
 }
 
 function set_pagesize($get_pagesize)
 {
  $this->pagesize = $get_pagesize;
 }
 
 function set_page($get_page)
 {
  $this->getpage = $get_page;
 }
 
 function set_sql($get_sqlstr)
 {
  $this->sqlstr = $get_sqlstr;
 }
 
 function check_getpage($page)
 {
  if(!(eregi("[0-9]",$page)))
  {
   $page = 1;
  }
  if($page <= 1)
  {
   return (1);
  }
  if($page > $this->totalpages)
  {
   return ($this->totalpages);
  }
  return ($page);
 }

 function show()
 {
  $this->totalrecord = mysql_num_rows(mysql_query($this->sqlstr));
  $this->totalpages = ceil($this->totalrecord / $this->pagesize);
  $this->getpage = $this->check_getpage($this->getpage);
  $this->nextpage = $this->check_getpage($this->getpage + 1);
  $this->prevpage = $this->check_getpage($this->getpage-1);
  $this->result = mysql_query($this->sqlstr." limit ".($this->getpage - 1) * $this->pagesize .", ". $this->pagesize);
 }
 
 function nopage()
 {
  $this->showerror();
 }
 
 function showerror()
 {
  echo "<table width=\"100%\" border=\"0\" cellspacing=\"1\" cellpadding=\"0\"><tr width=\"100%\"><td>";
  echo "<p align=\"center\">暂时没有记录！</p>";
  echo "</td></tr></table>";
 }
 
 function showpage($get_path) {
  if ($this->totalpages == 0) {
   $this->nopage();
  }
  else {
   echo "<table width=\"100%\" border=\"0\" cellspacing=\"1\" cellpadding=\"0\"><tr width=\"100%\"><td align=\"center\">";
   $nbsp="&nbsp;";
   if ($this->getpage == 1) {
    echo "第一页".$nbsp."上一页".$nbsp;
   }
   else {
    echo "<a href=\"$get_path?page=1\">第一页</a>$nbsp<a href=\"$get_path?page=$this->prevpage\">上一页</a>$nbsp";
   }
  
   if ($this->getpage == $this->totalpages) {
    echo "下一页".$nbsp."最后页".$nbsp;
   }
   else {
    echo "<a href=\"$get_path?page=$this->nextpage\">下一页</a>".$nbsp."<a href=\"$get_path?page=$this->totalpages\">最后页</a>".$nbsp;
   }
   echo "共有 <font color=#ff0000><b>".$this->totalrecord."</b></font> 条记录".$nbsp;
   echo "<font color=#ff0000><b>$this->getpage</b></font> （当前页）/ <font color=#ff0000><b>$this->totalpages</b></font> （总页数）".$nbsp;
   echo "</td></tr></table>";
  }
 }

}

?>

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