Checkboxes

**Medyman** · 07-16-2007, 01:00 AM

Hey all..

I have several checkboxes on a page. When a particular checkbox is clicked and the "next" button is clicked, I'd like the browser to point to a particular URL.

How do I:

1) Make it so only 1 check box is clicked at a time and/or check if more than 1 is selected and then promt user to only pick one.

2) Go to a particular webpage based on the checkbox selected.

Would I do this with JS, PHP, what?

**Twey** · 07-16-2007, 01:10 AM

PHP, preferably. It can be done with JS, but it would be a bad idea, since non-JS users wouldn't be able to use it. If you only want one item selected, you actually want a radio button.

Code:

<?php
  error_reporting(E_ALL); // because headers always cause trouble.
  if(isset($_POST['url']))
    header('Location: ' . $_POST['url']);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <title>Redirect to Page</title>
  </head>
  <body>
    <form action="<?php print $_SERVER['PHP_SELF']; ?>" method="post">
      <div>
        <label>
          <input type="radio" name="url" value="http://www.google.com/">
          Google
        </label>
        <label>
          <input type="radio" name="url" value="http://www.yahoo.com/">
          Yahoo!
        </label>
        <label>
          <input type="radio" name="url" value="http://www.clusty.com/">
          Clusty
        </label>
        <label>
          <input type="radio" name="url" value="http://www.twey.co.uk/">
          Twey
        </label>
      </div>
    </form>
  </body>
</html>

**thetestingsite** · 07-16-2007, 01:13 AM

This line would give an error:

Code:

header('Location: ' . $_POST['url']);

So instead use this:

Code:

header('Location: ' . $_POST["url"]);

Note: This is only for certain PHP configurations or something to that effect (read my post below).

**Twey** · 07-16-2007, 01:15 AM

What? No it wouldn't. And the double quotes would be a whole fraction of a millisecond slower

**thetestingsite** · 07-16-2007, 01:18 AM

That's wierd, I just tested it on two seperate installations. It worked fine with one (with the code you posted) but not with the other as it through up a parse error. I guess it just depends on the server config; so for that, just ignore my last post unless you have that problem as well.

**Twey** · 07-16-2007, 01:23 AM

Hmm? I can't see where the parse error would come from... what was the exact message?

**thetestingsite** · 07-16-2007, 01:35 AM

Ok, again, forget my post yet again. I figured out that I added something on the one that wasn't working that shouldn't have been there (I actually forgot a quote). Sorry for the confusion, and I will pay more attention next time (it's been a hell of a day with my daughter's birthday party and all).

**Twey** · 07-16-2007, 01:52 AM

Oh, congratulations to her. How old?

**thetestingsite** · 07-16-2007, 01:55 AM

She turns 5 on the 17th. Getting so big and sassy (like her mother)

.

**Medyman** · 07-16-2007, 08:35 PM

Thanks for the help guys.

But it's not working for me.
Not matter which radio button I select and then click submit, it takes me to "/<"

What could be causing this?

I didn't change anything except adding a submit button.

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