一段简单的php翻页代码

<?php
require_once("db.inc.php");
error_reporting(0);
$db = new DB();

# get total records count;
$rs = $db->q("select count(*) from users");
$count = $rs[0][0];

# set how many records display on each page
$pagesize = 10;

# get page count
$pagecount = ceil($count / $pagesize);

# get current page number and query from DB according to current page
$page = isset($_GET['page']) ? intval($_GET['page']) : 1 ;
$offset = ($page - 1) * $pagesize;
$query = "select * from users limit $offset, $pagesize";
$res = $db->q($query);
$rows = $res;

?>