如何在默认情况下显示禁用HTML选择选项？ [英] How to show disable HTML select option in by default?

问题描述

我是HTML和PHP的新手，希望从mysql表格中实现下拉菜单并进行硬编码。我在我的页面中有多个选择，其中之一是

I am new to HTML and PHP and want to achieve a drop-down menu from the mysql table and hard-coded too. I have multiple select in my page, One of them is

<select name="tagging">
    <option value="">Choose Tagging</option>
    <option value="Option A">Option A</option>
    <option value="Option B">Option B</option>
    <option value="Option C">Option C</option>
</select>

现在问题在于用户也可以选择选择标记作为他的标记，但我只想提供他从可用的三个中选择。我使用禁用作为

Problem is now that user can also select "Choose Tagging" as his tagging but i only want to provide him to chose from available three. I used disable as

<select name="tagging">
    <option value="" disabled="disabled">Choose Tagging</option>
    <option value="Option A">Option A</option>
    <option value="Option B">Option B</option>
    <option value="Option C">Option C</option>
</select>

但现在选项A成为默认选项。所以我想默认设置为选择标记，并且希望将其从选择中禁用。这是做到这一点的一种方式吗？同样的事情需要用其他选择来完成，这将从Mysql获取数据。任何建议都是可以接受的。

But now "Option A" became the default one. So i want to set "Choose Tagging" as by default and also want to disable it from selection. Is it a way to do this. Same thing need to be done with other select which will fetch data from Mysql. Any suggestion will be appreciable.

推荐答案

使用

use

<option selected="true" disabled="disabled">Choose Tagging</option>    

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