$page=$_REQUEST['page']?(int)$_REQUEST['page']:1;

$sql="select * from imooc_cate";

$totalRows=getResultNum($sql);

$pageSize=2;

$totalPage=ceil($totalRows/$pageSize);

if($page<1||$page==null||!is_numeric($page))$page=1;

if($page>=$totalPage)$page=$totalPage;

$offset=($page-1)*$pageSize;

$sql="select id,cName from imooc_cate  order by id asc limit {$offset},{$pageSize}";

$rows=fetchAll($sql);

$_REQUEST这句 一直在报错 分页没有成功过