How to implement html input drop-down menu-HTML Tutorial-php.cn

How to implement html input drop-down menu

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Release： 2018-02-02 09:45:16

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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 .

<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
</head> 
<body> 
<?php 
echo &#39; 
<form name="DDForm" method="GET" action=""> 
<div style="position:relative;"> 
<span style="margin-left:100px;width:18px;overflow:hidden;"> 
<select style="width:180px;margin-left:-100px" onchange="this.parentNode.nextSibling.value=this.value" name="hh"> 
<option value="汽车">汽车 </option> 
<option value="火车"> 火车 </option> 
<option value="飞机"> 飞机 </option> 
</select> 
</span><input name="box" style="width:160px;position:absolute;left:0px;"> 
<input value="提交" name="submit" type="submit"/> 
</div> 
</form>&#39;; 
$aa=$_GET[&#39;hh&#39;]."111"; // select 下拉菜单的值 
$bb=$_GET[&#39;box&#39;]."222"; // 输入框的值 
echo $aa; 
echo "</br>"; 
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。 
?> 
</body> 
</html>

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

 </span><input name="box" style="width:160px;position:absolute;left:0px;">

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

</span> <input name="box" style="width:160px;position:absolute;left:0px;">

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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!