PHP show下拉列表基于值选择 [英] PHP show drop down selected based on value

问题描述

我想显示一个从数据库中选择的下拉菜单.

I want to show a drop down selected for some value which is coming from database.

    <select name="plans">
       <option>MAP</option>
       <option>CP</option>
       <option>CPA</option>
       <option>CPF</option>
    </select>

从PHP/Mysql数据库中读取一个值，假设为"CPA"，如何显示此选项被选中?

Reading a value from database in PHP/Mysql, lets say "CPA", how do I show this option selected?

推荐答案

您需要在HTML中使用selected属性.

例如，如果您从数据库中获得的值已分配给变量$val，

If for example the value you got from the database is assigned to a variable say $val,

然后您可以按照以下步骤进行操作:

Then you can do it as follows :

<select name="plans">
       <option <?php echo ($val == 'MAP')?"selected":"" ?> >MAP</option>
       <option <?php echo ($val == 'CP')?"selected":"" ?> >CP</option>
       <option <?php echo ($val == 'CPA')?"selected":"" ?> >CPA</option>
       <option <?php echo ($val == 'CPF')?"selected":"" ?> >CPF</option>
 </select>

这篇关于PHP show下拉列表基于值选择的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！