PHP表单带有多个提交按钮

Question

I have a form with Two buttons. It's a submit form which is basically there to increase/Decrease an Integer value in a MySQL database depending on which button they click.

This is a weird scenario, the page requires an ID extension;

appinfo.php?id=12

Whenever I click one of the buttons it changes the extension to:

appinfo.php?VoteYes=Yes

Ideally I'd like it so if someone clicks on Yes it will increase a value within an SQL query and if they click no, it will decrease it.

Here is what I have so far:

<form action="<?php echo $_SERVER['PHP_SELF'] . "?id=" . $_GET['id']; ?>"/>
    <input id="submit" name="VoteYes" type="submit" value="Yes" class="btn btn-success"></input>
    <input id="submit" name="VoteNo" type="submit" value="No" class="btn btn-warning"></input>
</form>

Answer 1

In your <form> add the attribute method="post" . The default is GET which is changing your URL.

So, it should be:

<form method="post" action="<?php echo $_SERVER['PHP_SELF'] . "?id=" . $_GET['id']; ?>"/>
    <input id="submit" name="VoteYes" type="submit" value="Yes" class="btn btn-success"></input>
    <input id="submit" name="VoteNo" type="submit" value="No" class="btn btn-warning"></input>
</form>

Then in your PHP code, check for $_POST instead of $_GET when checking for the submitted values.

Hope it helps!

Answer 2

If you really want the query string You can do this with hidden input that will include the id, I also modified the names to make it less complicated

<form>
<input id="submit" name="Vote" type="submit" value="Yes" class="btn btn-success" />
<input id="submit" name="Vote" type="submit" value="No" class="btn btn-warning" />
<input  name="id" type="hidden" value="<?php echo $_GET['id']?>" /></form>