Article list display function

1, Prepare data

You need to prepare information about all article categories, all article details, and operate the database for query

Create a new index.php page, the code is as follows:

<?php
header("Content-Type:text/html;charset=utf-8");
//获取要查询的分类ID,0表示全部
$cid=isset($_GET['cid'])?intval($_GET['cid']):0;
//获取查询列表条件
$where='';
if($cid) $where="where cid=$cid";
//初始化数据库操作类
require './init.php';
//载入分页类
require './page.class.php';
//获取当前页码号
$page=isset($_GET['page'])?intval($_GET['page']):1;
//拼接查询条件
//获取总记录数
$sql="select count(*) as total from cms_article $where";
$results=$db->fetchRow($sql);
$total=$results['total'];
//实例化分页类
$Page=new Page($total,4,$page); //Page(总记录数,每页显示条数,当前页)
$limit=$Page->getLimit();  //获取分页链接条件
$page_html=$Page->showPage(); //获取分页html链接
//var_dump($total);die();
//分页获取文章列表
$sql="select id,title,content,author,addtime,cid from cms_article $where order by addtime DESC limit $limit";
$articles=$db->fetchAll($sql);
foreach ($articles as $k=>$v){
    //mb_substr(内容,开始位置,截取长度,字符集)
    $articles[$k]['content']=mb_substr(trim(strip_tags($v['content'])),0,150,'utf-8').'......';
}
$sql="select name from cms_category ORDER BY sort";
$categories=$db->fetchAll($sql);
//var_dump($categories);die();
require './indexHtml.php';

The code instantiates the paging class and performs multiple query operations on the database.

The data obtained includes

pagination information:$page_html

All article classification information:$categories

Detailed information of articles sorted by time:$articles

The above information is alternately displayed on the front-end page using

2, front-end display page code:

New indexHtml.php page

The page is displayed as follows:

Traverse the title bar category data:

Traverse the latest article data:

Insert a few more pieces of data into the database and the paging effect page is shown as follows:

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