php实现面包屑导航例子分享,
本实例讲解了php实现面包屑导航的方法,面包屑导航在项目非常实用,在此处就写一个这方面的实现。
path表示所有的祖先id,fullpath表示所有的祖先id和本身id
-- -- 表的结构 `tp_likecate` -- CREATE TABLE IF NOT EXISTS `tp_likecate` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `catename` varchar(24) NOT NULL, `path` varchar(10) NOT NULL, `fullpath` varchar(20) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=9 ;
数据
-- -- 转存表中的数据 `tp_likecate` -- INSERT INTO `tp_likecate` (`id`, `catename`, `path`, `fullpath`) VALUES (1, '手机', '', ',1'), (2, '功能手机', '1', '1,2'), (3, '老人手机', '1,2', '1,2,3'), (4, '儿童手机', '1,2', '1,2,4'), (5, '智能手机', '1', '1,5'), (6, 'android手机', '1,5', '1,5,6'), (7, 'IOS手机', '1,5', '1,5,7'), (8, 'WinPhoto手机', '1,5', '1,5,8');
数据库连接:
<?php $db_host = 'localhost'; $db_user = 'root'; $db_password = ''; $db_name = 'test'; $con = mysql_connect($db_host, $db_user, $db_password) or die(mysql_error()); mysql_select_db($db_name, $con) or die(mysql_error()); mysql_query('set names utf8') or die(mysql_error()); ?>
主函数:
function likecate($path='') { // concat() 连接字段 $sql = "select id,catename,path, concat(path,',',id) as fullpath from tp_likecate order by fullpath asc"; $res = mysql_query($sql); $result = array(); while($row=mysql_fetch_assoc($res)) { $deep = count(explode(',', trim($row['fullpath'], ','))); // explode字符串转换为数组 implode数组转换为字符串 $row['catename'] = @str_repeat(' ', $deep).'|--'.$row['catename']; $result[] = $row; } return $result; }
输出:
// 简单输出 $res = likecate(); echo "<select name='cate'>"; foreach($res as $key=>$val) { echo "<option>{$val['catename']}</option>"; } echo "</select>"; echo "<br />"; // 封装方法 function getPathCate($cateid) { $sql = "select *,concat(path, ',',id) fullpath from tp_likecate where id = $cateid"; $res = mysql_query($sql); $row = mysql_fetch_assoc($res); $ids = $row['fullpath']; $sql = "select * from tp_likecate where id in($ids) order by id asc"; $res = mysql_query($sql); $result = array(); while($row = mysql_fetch_assoc($res)) { $result[] = $row; } return $result; } // 加上了链接的参数 function displayCatePath($cateid,$link='cate.php?cid=') { // 也可以组装 $res = getPathCate($cateid); $str = ''; foreach($res as $k=>$v) { $str.= "<a href='{$link}{$v['id']}'>{$v['catename']}</a> > "; } return $str; } echo displayCatePath(4);
效果:
以上就是php实现面包屑导航的详细步骤,希望对大家学习php程序设计有所帮助。
您可能感兴趣的文章:
- thinkphp实现面包屑导航(当前位置)例子分享
- php可应用于面包屑导航的递归寻找家谱树实现方法
- php可应用于面包屑导航的迭代寻找家谱树实现方法
Statement
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
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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article
How to fix KB5055523 fails to install in Windows 11?
3 weeks agoByDDD
How to fix KB5055518 fails to install in Windows 10?
3 weeks agoByDDD
Roblox: Dead Rails - How To Tame Wolves
4 weeks agoByDDD
Roblox: Grow A Garden - Complete Mutation Guide
2 weeks agoByDDD
Strength Levels for Every Enemy & Monster in R.E.P.O.
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

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

SublimeText3 Linux new version
SublimeText3 Linux latest version

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

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

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
