How to implement html input drop-down menu

This time I will show you how to implement html input drop-down menu, what are the precautions to implement html input drop-down menu, the following is a practical case, let’s take a look .

 
 
 

 
 
 
 
 
 
汽车  
 火车  
 飞机  
 
 
 
 
'; 
$aa=$_GET['hh']."111"; // select 下拉菜单的值 
$bb=$_GET['box']."222"; // 输入框的值 
echo $aa; 
echo "
"; 
echo $bb; 
// 要获得可输入下拉菜单的值，只要获得输入框的值即可。 
?> 
 

To get the value that can be entered into the drop-down menu, just get the value of the input box.
Note:

This line must be in one line and cannot be written as

After the line break, the value of the drop-down menu cannot be displayed in the input box.
You can also automatically select matching menu values ​​based on the input content.

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

How to operate the viewport in the meta tag to control the css properties of the device screen

Radio selection and How to add styles to images for multi-select buttons

There are several ways to disable form controls in HTML

How many buttons are there? A Click response method

How to solve the problem of a blank line above and below the form after inserting it

The above is the detailed content of How to implement html input drop-down menu. For more information, please follow other related articles on the PHP Chinese website!