刷新页面后最后选择的选项 [英] last selected option after refresh the page

问题描述

这是我的链接

http://www.developer.nextgenexperts.in/astika/products_.php

当页面打开时，默认货币在顶部下拉列表中显示INR，如果我选择下拉列表，则我还将获得GBP，而当我们选择GBP时，价格将转换为GBP，但是当我选择GBP时将刷新页面，然后页面为INR，但是我要选择最后一个选项，所以它将如何可能，请帮助我...

When page will open then default currency is showing INR in top dropdown, and if i will select dropdown then i will also get GBP, and when we select GBP, then the price will convert in GBP, But after selecting GBP when i will refresh the page then page is INR, but I want to it last selected option, so how it will possible, pls help me...

推荐答案

只需使用$_SESSION['convert']:

第一次打开页面时，将检查会话是否存在:

The first time you open the page you will check if session exists:

session_start();
$convert = isset($_SESSION['convert'])?$_SESSION['convert']:"INR";

因此，当您将下拉菜单写为:

So, when you will write your dropdown like:

<form>
   <select>
      <option value="INR" <?php echo $convert=='INR'?'selected':''?>>INR</option>
      <option value="GBP" <?php echo $convert=='GBP'?'selected':''?>>GBP</option>
   </select>
</form>

然后在表单提交中，您将选择实际的转换并将其保存在会话中

then on form submit you will take the actual convert selected and save it in session:

session_start();
$convert = $_POST['convert'];
$_SESSION['convert] = $convert;

这篇关于刷新页面后最后选择的选项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！