刚才那几节课程里面将功能几乎都实现了出来，公众平台营销咨询系统最后一部分就是分页的实现了，show_info.php这里修改下代码分页即可实现出来，代码如下所示：
<?php
//链接数据库
$connect = mysql_connect(‘localhost‘,‘root‘,‘root‘);
mysql_select_db(‘wxdb‘,$connect);
mysql_query(‘set names utf8‘);
//分页开工咯，先取个别名counts
$sql = "select count(*) as counts from zx_info";
$res = mysql_query($sql);
$row = mysql_fetch_assoc($res);
//这里的$row_num是总的咨询条数
$row_num = $row[‘counts‘];
//我们规定每页显示5条记录
$page_size = 5;
//计算总页数
$page_count = ceil($row_num/$page_size);
//接收当前用户点击的是第几页
$page_num = $_GET[‘page_num‘];
//判断$page_num是否为空,如果是空的默认给他一个1
if(empty($page_num)){
$page_num = 1;
}
//计算从那条记录开始获取
$begin = ($page_num-1)*$page_size;
$sql = "select * from zx_info order by id desc limit {$begin},{$page_size}";
$info_res = mysql_query($sql);
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>公众平台营销咨询系统</title>
<meta name="viewport" content="width=device-width,height=device-height,inital-scale=1.0,maximum-scale=1.0,user-scalable=no;">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<link href="./jquery.mobile-1.0.min.css" rel="stylesheet" type="text/css">
<script src="./jquery-1.6.4.min.js" type="text/javascript"></script>
<script src="./jquery.mobile-1.0.min.js" type="text/javascript"></script>
</head>
<body>
<div data-role=‘page‘ id=‘page3‘>
<div data-role=‘header‘>
<h1>公众平台营销咨询系统</h1>
</div>
<div data-role=‘content‘>
<ul data-role=‘listview‘>
<?php
$row = array();
while($row = mysql_fetch_assoc($info_res)){
?>
<li>
<a href="/reply_view.php?id=<?php echo $row[‘id‘]; ?>"><?php echo $row[‘zx_info‘]; ?>
<p class="ui-li-aside">回复咨询</p></a>
</li>
<?php } ?>
</ul>
</div>
<!--分页的按钮开始-->
<div data-role="controlgroup" data-type="horizontal">
<?php
if($page_num!=1 && $page_num>1){ ?>
<a href="/show_info.php?page_num=<?php echo $page_num-1; ?>" data-role="button">上一页</a>
<?php } ?>
<?php
if($page_count > $page_num){ ?>
<a href="/show_info.php?page_num=<?php echo $page_num+1; ?>" data-role="button">下一页</a>
<?php } ?>
</div>
<!--分页的按钮结束-->
</div>
</body>
</html>
时间： 2024-12-29 06:56:47