在Ecmall的二次开发中，分页是必不可少的。这个系统已经自带了分页功能，下面来看看如何使用这个分页。

下面是一个自定义的类，用于查看订单的详细情况。关键在于get_order_data()这个方法，分页的使用也在这个方法的内部了。应该有的注释都有了，应该会比较容易懂，我不就多说了。

     _get_page(NUM_PER_PAGE);        $page['item_count'] = $stats['total_count'];        $this->_format_page($page);        $this->assign('page_info', $page);         $this->display('gorder.index.html');       }          /* 订单记录 */    function orderslog()    {        $goods_id = empty($_GET['id']) ? 0 : intval($_GET['id']);        if (!$goods_id)        {            $this->show_warning('Hacking Attempt');            return;        }                $data = $this -> get_order_data($goods_id);                if ($data === false)        {            return;        }                $this->assign('order', $data);        $this->display('gorder.index.html');    }        function get_order_data($goods_id)    {        //clean_cache();        $cache_server =& cache_server();        //print_r($cache_server);        $key = 'order_' . $goods_id;        //$key = $this->_get_cache_id();        $r = $cache_server->get($key);        $cached = true;                $db = &db();                $sql = "select count(*)                from shop_order a, shop_order_extm b, shop_order_goods c                where a.order_id = b.order_id and b.order_id = c.order_id                and c.goods_id = '".$goods_id."'                and a.status != '11'                and a.status != '0'                and a.status != '20'                order by a.add_time desc ";        //echo $sql;        $num = $db -> getone($sql);                //求出总记录数        $page = $this->_get_page(NUM_PER_PAGE);    //每页显示的条数，默认是10条        $page['item_count'] = $num;                // 返回一个数组$page，$page['limit']=0，10        $this->_format_page($page);                //格式化分页                $sql2 = "select a.order_id, a.buyer_name, a.add_time, a.status, b.phone_tel, b.phone_mob, b.consignee, c.price, c.quantity, c.goods_id                 from shop_order a, shop_order_extm b, shop_order_goods c                where a.order_id = b.order_id and b.order_id = c.order_id                and c.goods_id = '".$goods_id."'                and a.status != '11'                and a.status != '0'                and a.status != '20'                order by a.add_time desc limit ".$page['limit'];                $result = $db -> query($sql2);                $this -> assign('page_info',$page);     //向模板页传递页数        $this -> assign('que',$sql2);     //向模板页传递查询结果                //$r = array();        while($myrow = $db -> fetch_array($result))        {            $r[] = $myrow;        }        $cache_server->set($key, $r, 1);        return $r;    }    }?>

　简化如下：

Define("LIMIT",10);$goods_mod = & db('test');//构建实体模型（操作表）$count = 'select count(id) from test';$num = $goods_mod -> getone($count);//求出总记录数$page = $this->_get_page(LIMIT);//每页显示的条数，默认是10条$page['item_count'] = $num;// 返回一个数组$page，$page['limit']=0，10$this->_format_page($page);//格式化分页$sql = 'select id,title,content from test order by id desc limit '.$page['limit']; $que = $goods_mod -> getAll($sql);//查询记录$this -> assign('page_info',$page); //向模板页传递页数$this -> assign('que',$que); //向模板页传递查询结果