How to implement php drop-down menu and multi-level columns? (Code actual test)

In website construction, the navigation bar usually displays a drop-down column. The PHP implementation of this function is not that simple. It requires a certain knowledge reserve related to database and PHP. So this article will introduce you to the functional implementation of the PHP secondary drop-down menu in a simple way so that you can understand and learn it.

This simple and easy-to-understand method is mainly implemented through html and css code. The specific example of the php drop-down menu code is as follows:

     
  
 
 
首页
 
笔记本电脑 
 
索尼 
 
联想 
 
 
 
摄像机 
 
松下 
 
佳能 
 
 
 
联系我们
 
 
  

style.css code is as follows:

This article mainly introduces how to implement the PHP secondary drop-down menu in a simple way. I hope it will be helpful to friends in need.

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