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PHP实现简单数字分页效果

Jun 06, 2016 pm 07:51 PM
php

我们平时在开发中,经常需要用到分页,在项目中要用到分页。分页功能是经常使用的一个功能,下面我们就来简单分享个数字的分页效果

学习要点:
1.LIMIT 用法
2.各种参数
3.超链接调用

第一:先在文件中设置数字分页模块;我的文件是(blog.php)

复制代码 代码如下:

//分页模块
$_page = $_GET['page'];
$_pagesize = 10;
$_pagenum = ($_page - 1) * $_pagesize;
//首页要得到所有的数据总和
$_num=mysql_num_rows(_query("SELECT tg_id FROM tg_user"));
$_pageabsolute=$_num / $_pagesize;

要注意的是在数据库中取集的时候

复制代码 代码如下:

//我们必须每次重新读取结果集,而不是从新去执行SQL语句。
$_result = _query("SELECT tg_username,tg_sex,tg_face FROM tg_user ORDER BY tg_reg_time DESC LIMIT $_pagenum,$_pagesize");


设置分页循环的效果

相对应的CSS

#page_num { height:20px; clear:both; padding:10px 0; position:relative; } #page_num ul { position:absolute; right:30px; height:20px; } #page_num ul li { float:left; width:26px; height:20px; } #page_num ul li a { display:block; width:20px; height:20px; line-height:20px; border:1px solid #333; text-align:center; text-decoration:none; } #page_num ul li a:hover,#page_num ul li a.selected { background:#666; font-weight:bold; color:#fff; }

在其中可能会由于编码出现容错误,解决的方法是

// 分页模块 if (isset ( $_GET ['page'] )) { // 在数据不再数据范围内出错的解决方法 $_page = $_GET['page']; // 是否为空,是否小于0,,是否不是数字。//如果其中有一个是,那么就=1 if (empty ( $_page )||$_page $_pageabsolute) { $_page=$_pageabsolute; } $_pagenum = ($_page - 1) * $_pagesize;

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