multiple submit button - php

Question

i've a form POST with multiple submit buttons. i understand to get this to work i must have them with different name.
however, i wanna keep the name to be the same because i wanna handle the POST using a single script.
im not sure if there is other way but i know javascript can be used. however, how do i get the value of the hidden value associated to the button since now they have only a single ??
my example is as follows:
<form method="Post" action="file.php">
<input type="hidden" name="removeid" value="1" />
<input type="submit" id="btnremove" name="btnremove" value="Remove" inputbutton/>
<input type="hidden" name="removeid" value="2" />
<input type="submit" id="btnremove" name="btnremove" value="Remove" inputbutton/>
<input type="hidden" name="removeid" value="2" />
<input type="submit" id="btnremove" name="btnremove" value="Remove" inputbutton/>
</form>

Answer 1

Your hidden values are not associated with the buttons at all. Furthermore, you cannot use the same value for the ID attribute on multiple elements.
What I usually do in this situation is check the POST vars. Name them something like remove_1, remove_2, etc. Then you can search through your POST vars, find all of them beginning with remove_ (or whatever format you choose... don't use it for other things) and then you can parse out the ID of what you are trying to remove.

Answer 2

You could always just use 3 different forms, all with the same action. No JavaScript needed.
<form method="Post" action="file.php">
<input type="hidden" name="removeid" value="1" />
<input type="submit" value="Remove" inputbutton/>
</form>
<form method="Post" action="file.php">
<input type="hidden" name="removeid" value="2" />
<input type="submit" value="Remove" inputbutton/>
</form>
<form method="Post" action="file.php">
<input type="hidden" name="removeid" value="2" />
<input type="submit" value="Remove" inputbutton/>
</form>

Answer 3

It's possible using two different methods:
If you absolutely have to show 3 different buttons, use a separate <form> wrapper for each one. Put each "removeid" element in a different form.
Otherwise, just have a single button, and when submitted, use JavaScript to set the value of a single hidden input element before posting the form. You can find sample code for this easily with a Google query for "javascript+form+post".

Answer 4

You can have one form with more than one submit button sharing the same name, your initial assumption was wrong.
The following code is perfectly valid, and the value of the clicked submit button will be passed along with its name:
<form action="TestZone.html" method="GET">
<input type="submit" name="MySubmit" value="First" /><input type="submit" name="MySubmit" value="Second" /><input type="submit" name="MySubmit" value="Third" />
</form>
You can't have multiple elements with same ID, but same name for form elements is common and valid.

Answer 5

Hi i have resolved my questions by following Brad solution. to get the POST var, i did this:
//Check if Remove btn is clicked
$isClickRemove = false;
$cid = "";
foreach($_POST as $k=>$v){
$pos = strpos($k,"btnremovecart_");
if($pos !== false){
$pos2 = strpos($k,"_"); //2nd pos to get cartID
$cid = substr($k,$pos2+1);
$isClickRemove = true;
break;
}
}
my html looks like this:
<input type="submit" id="btnremovecart_11" name="btnremovecart_11" value="Remove" />
hope this helps =)

Answer 6

You can't because there is no way of distingushing the different fields.