function page($sql,$pagesize=10,$class=""){
 
 if(!is_string($sql)){ return 0;exit;}
 $result=mysql教程_query($sql);
 if(!$result){return 0;exit;}
 if(!$recordnum=mysql_num_rows($result)){return 0;exit;}
 $totalpage=ceil($recordnum/$pagesize);
 $page=(int)$_get['page'];
 if($page<=1) $page=1;
 if($page>=$totalpage) $page=$totalpage;
 $recordno=($page-1)*$pagesize;
 $sql.=" limit $recordno,$pagesize";
 $result=mysql_query($sql);
 $url=$_server["php_self"];

 if($page==1)$str= "首页｜上页";
 else $str.="<a href="$url?".$class."&page=1">首页</a>｜<a href="$url?".$class."&page=".($page-1)."">上页</a>";
 if($page==$totalpage) $str.=  "｜下页｜末页";
 else  $str.="｜<a href="$url?".$class."&page=".($page+1)."">下页</a>｜<a href="$url?".$class."&page=$totalpage ">末页</a>";
 $str.=" 当前第 $page 页 共 $totalpage 页";
 return array($result,$str);
}
//调用方法

$sql="select * from images order by imid";
$result=page($sql,16);