PHP+MySQL实现无极限分类栏目的方法_PHP
本文实例讲述了PHP+MySQL实现无极限分类栏目的方法。分享给大家供大家参考,具体如下:
一个非常简单清晰简单的无极限分类范例,带缩进效果,只需查询一次数据表,然后递归遍历结果集,就可以了,要在php中实现栏目缩进显示可以参考一下。
$sql = 'select * from cat order by cat_id desc'; $list = $db->getAll($sql); $list = getLevelCat($list); function getLevelCat($catlist, $parent_id='0', $html=' ', $level='0'){ $arr = array(); foreach($catlist as $val){ if($val['parent_id']==$parent_id){ $val['html'] = str_repeat($html,$level); $val['level'] = $level; $arr[] = $val; $arr = array_merge($arr, getLevelCat($catlist, $val['cat_id'], $html, $level+1)); } } return $arr; }
实现效果图:
短短几行代码,比较清晰,也比较好用。
希望本文所述对大家PHP程序设计有所帮助。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

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

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

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

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

One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app

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

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

CakePHP is an open source MVC framework. It makes developing, deploying and maintaining applications much easier. CakePHP has a number of libraries to reduce the overload of most common tasks.
