Home Backend Development PHP Tutorial php获取文章上一页与下一页的方法_php技巧

php获取文章上一页与下一页的方法_php技巧

May 16, 2016 pm 08:29 PM
php Previous page Next page article Obtain

本文实例讲述了php获取文章上一页与下一页的方法。分享给大家供大家参考。具体方法如下:

今天发现一个站的上一页与下一页出现问题,上一页没有问题但是在下一页是直接到了本频道最新发布的文章了,按原理应该是文章本身ID的前与后的ID才是上下页吧,下面我来与大家详细讲述一下.

先看个例子:1,2,3,4,5.

假如上面5个是ID了,我要对上一页排序直接使用order by id desc,如我当前ID为3那么出来的是2才对,对下一页我们要用order by id asc得出的排序应该是,4,好了原理就这么简.

sql实现方法,代码如下:

上一页:

复制代码 代码如下:
$sql ="Select 字段 from 表名 where id

下一页:

复制代码 代码如下:
$sql ="Select 字段 from 表名 where id>3 order by id asc limit 1";

得出的结果与我们想的是一样的,好了最后我把自己以前写的一个函数分享给各位,代码如下:

复制代码 代码如下:
/*
 上一页,下一页
 int $tag 0上一页,1下一页
 int $fid
*/
 function nextPre($tag=0,$zid,$fid)
 {
  if( $tag )
  {
   $sql ="Select 字段 from 表名 where id   }
  else
  {
   $sql ="Select 字段 from 表名 where id>$fid order by id asc limit 1";
  }
  //$sql = "Select * from 表名 where order by id desc limit 0,10";
  $result =  mysql_query($sql) or die('query error');
  if( mysql_num_rows( $result ) )
  {
   $rs = mysql_fetch_array( $result );
   return "".$rs['title']."";
  }
  else
  {
   return '没有了';
  }
 }

希望本文所述对大家的PHP程序设计有所帮助。

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

In this chapter, we are going to learn the following topics related to routing ?

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

See all articles