Posted by Philip Ronan on 11/14/05 14:08

"John" wrote:

> I have a page that requests an index number from the user using a
> form. The submit then calls itself and a php lookup table determines
> the web page required and then does a jump.
>
> echo "<script>window.location.href='$a'</script>";

Don't use Javascript to redirect. Use a Location header instead:

<?php
header("Location: $a");
?>

If PHP refuses to do that and says something like "headers already sent",
then visit http://php.net/header and read it very carefully.

> Details of the page are passed in the address line and pulled off with
> POST. All works fine no problems,

Why are you using POST? Based on your description, I think GET would be more
suitable in this case. Some browsers object to being returned to a POST form
because the data is no longer valid once it has been sent. Perhaps you also
need to sit down and read RFC2626: http://www.faqs.org/rfcs/rfc2616.html

> However if the user hits the back button the jump is made again and
> the page they are on simply reloads, as you would expect.

That's only what I would expect from a lame Javascript redirect :-/

--
phil [dot] ronan @ virgin [dot] net
http://vzone.virgin.net/phil.ronan/

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