单击html链接时获取价值 [英] Get value when an html link is clicked

问题描述

单击链接时是否可以在锚标记中获取文本的值?例如 如果您有<a href="#">Tables</a> 是否可以在会话变量之类的变量中检索"Tables"值并在您的页面中使用它? 我有几个类别的项目(属于链接)，我希望能够获得单击的任何类别的值，并使用它从我的数据库中提取该类别中列出的产品. 谢谢.

Is it possible to get the value of the text in an anchor tag when the link is clicked? e.g if you have <a href="#">Tables</a> is it possible to retrieve the value "Tables" in a variable like a session variable and use it across your pages? I have several categories of items(which are links) and i want to be able to get the value of any category clicked and use it pull products listed in that category from my database. Thanks.

这是我尝试过的 <a href="#" onclick= "<?php $_SESSION[value] = "Table" ?>">Table</a> 但是没有得到价值. 抱歉，应该早点发布

This what i tried <a href="#" onclick= "<?php $_SESSION[value] = "Table" ?>">Table</a> But didn't get the value. Apologies, should have posted it earlier

推荐答案

发布后，您的代码未提交，因此从未处理您的PHP:

As posted, your code does not submit so your PHP is never processed:

<a href="#"

当您将href值设为#"时，不会提交新请求.但是，您可以修改锚点，以将类别提交回PHP脚本，如下所示:

When you have "#" as the href value, no new request is submitted. However, you can modify your anchor to submit the category back to your PHP script like this:

<a href="yourscript.php?category=Table">Table</a>

然后在yourscript.php中，您可以使用$ _GET读取值:

Then in yourscript.php you can read the value using $_GET:

$selected_category = $_GET['category']; // Get 'Table'

要在会话中设置值，请首先确保已在脚本顶部附近启动会话:

To set the value in your session, first be sure that you have started your session near the top of your script:

session_start();

然后按如下所示保存值:

then save the value like this:

$_SESSION['selected_category'] = $_GET['category'];

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