PHP SMARTY 双循环(递归)输出分类 问题
模版
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->{foreach from=$classlist item=newsclass} <div class="bg03"><a href="news.php?classid=%7B%24newsclass.id%7D&%7Bif%20%24newsclass.ispro%20eq%201%7Dispro=true%7B/if%7D" target="main">{$newsclass.classname}</a></div>{/foreach}
程序
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->$sql = "select * from jh_newsclass where parentid = 0";$result = $mysqli->query($sql);while ($row = $result->fetch_row()) { $classlist[] = array( 'id'=>$row[0], 'classname'=>$row[2], 'parentid'=>$row[1], 'ispro'=>$row[3], );}$result->close();$mysqli->close();$smarty->assign('classlist',$classlist);$smarty->assign('webname',Webname);$smarty->display('admin/left.htm');
这样只能输出一级分类. 我需要在一级分类下再输出二级..三级..该怎么写呀?
以前用ASP输出的效果
- HTML code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> <div class="bg03">新闻专题</div><div class="forumlist_groups"><div align="left"><ul> <li class="forumli"><a href="news.asp?classid=3&newsclass=3" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">新闻动态</font></a></li> <li class="forumli"><a href="news.asp?classid=6&newsclass=6" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">美大专题</font></a></li> <li class="forumli"><a href="news.asp?classid=16&newsclass=16" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">月兔专题</font></a></li> </ul></div></div> <div class="bg03"><a href="news.asp?classid=14&newsclass=14" target="main">供求信息</a></div> <div class="bg03">产品展示</div><div class="forumlist_groups"><div align="left"><ul> <li class="forumli"><a href="news.asp?classid=18&ispro=true&newsclass=18" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">美大灶具</font></a></li> <li class="forumli"><a href="news.asp?classid=19&ispro=true&newsclass=19" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">月图厨柜</font></a></li> <li class="forumli"><a href="news.asp?classid=20&ispro=true&newsclass=20" target="main">+--<img src="/static/imghwm/default1.png" data-src="images/leaf.gif" class="lazy" id="folder180" style="max-width:90%" style="max-width:90%" align="absmiddle" alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">集成效果</font></a></li> </ul></div></div>
原来的ASP代码
- HTML code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> <div class="bg03"><a href="news.php?classid=<%=rs(" id>&newsclass=" target="main"></a></div> <div class="bg03"></div> <div align="left"><ul>") while not showparentclassrs.eof response.Write"<li class="" forumli>" set temprs = conn.execute("select * from Jh_newsclass where parentid = " & showparentclassrs("id")) if temprs.eof and temprs.bof then response.Write"<a href="news.php?classid=%22&showparentclassrs(%22id%22)%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20if%20showparentclassrs(%22ispro%22)%20then%20response.Write(%22&ispro=true%22)%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20response.Write%22&newsclass=%22&showparentclassrs(%22id%22)&%22" target="main">" & astr & tree & "<img src="/static/imghwm/default1.png" data-src="" images class="lazy" id="" folder180 style="max-width:90%" height="" align="" absmiddle alt="PHP SMARTY 双循环(递归)输出分类 有关问题" ><font color="">" & showparentclassrs("classname")&"</font></a>" else response.Write astr & tree & "<img src="/static/imghwm/default1.png" data-src="" images class="lazy" id="" folder180 style="max-width:90%" height="" align="" absmiddle alt="PHP SMARTY 双循环(递归)输出分类 有关问题" >" & showparentclassrs("classname") end if set temprs = nothing response.Write"</li>" call showparentclass(astr,tree&"--",showparentclassrs("id")) showparentclassrs.movenext wend response.Write("</ul></div>") end ifend sub%><div class="clear"> </div>

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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

Hot Tools

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.

Dreamweaver Mac version
Visual web development tools

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

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

WebStorm Mac version
Useful JavaScript development tools