[RESOLVED] Passing multiple form vars with same name

rkolbe

In trying to pass multiple values/variables to another script...I have run into an issue. I've spent a good amount of time on it, reading the PHP man, my cookbook, and searching here on the forums without finding a good solution. Please send me in the right direction (as always) 🙂

Using the test script:

<?php
//pass multiple vars of the same name


if($_POST['submit']){
  echo var_dump($_POST);
}else{
  echo'<h1>Add Node</h1>
<p><form action="'.$_SERVER['PHP_SELF'].'" method="post">
  system1: <input type="checkbox" name="1" value="1"></br>
  system2: <input type="checkbox" name="2" value="2"></br>
  system3: <input type="checkbox" name="3" value="3"></br>
  system4: <input type="checkbox" name="4" value="4">
  <input type="submit" name="submit" value="submit">
</form></p>';
}
?>

Checking options #1 and #4 gives:

array(3) { [1]=>  string(1) "1" [4]=>  string(1) "4" ["submit"]=>  string(6) "submit" }

...as it should.

What I am trying to do is set each checkbox name to name="id" so that later (in the script it posts to) I can iterate something like foreach($id as $useful_id) and do what I need.

Does anyone have any good suggestions on how I could accomplish this aside from javascript?

rkolbe

................

stolzyboy

name your checkbox with the []

like name="id[]"

that'll bring an array named $_POST['id'] to your next page and you can loop thru that

rkolbe

stolzyboy wrote:
name your checkbox with the []

like name="id[]"

that'll bring an array named $_POST['id'] to your next page and you can loop thru that

That works...but is there a better way of covering it up so that when you look at the HTML source you do not see name="id[]" ??

I am currently searching the forums again for anything that might help.

rkolbe

According to PHP man this IS the way to do what I am trying to do:

http://us2.php.net/manual/en/faq.html.php#faq.html.select-multiple

I suppose I will continue on with this method 😉

Thank you =D

Installer

You could name the checkboxex something like "cb0", "cb1", "cb2", etc. Then on the next page process the post array:

foreach ($_POST as $key => $val) {
    if (substr($key, 0, 2) == 'cb') {
        $cb_arr[] = $_POST[$key];
    }
}

stolzyboy

yes, you sure could... tho what's the advantage of doing that? and why do it that way when PHP lets you do it "it's" way 🙂

Installer

Yes, I would and do let PHP do it its way. But some do want to hide PHP (whether they should or not is another question), and the advantage of the code is that it answers rkolbe's request.

stolzyboy

yeah, that's true, but with simple obfuscation like that... it's not really worth going through the trouble, imo...

"hiding" php by that method is just about as good as hiding it with .html rendering as .php... sure most won't know, but fly over to netcraft and plug in the url and you can see what os/languages/etc... are available 🙂

Installer

Okay.

stolzyboy

i'm not being pigheaded... just stating the facts... your method may be a desired method for people dynamically creating form elements and is a good solution 🙂