Weird session scope issue in PHP

Question

I am having a really unsual problem I have never had before, I have a signup page/form and a processing page that for submits to, on the processing page I set any errors that are in the user data like empty fields and set them to a session var array

$_SESSION['signup_errors'] = $signup_errors;

$signup_errors is an array that I set to the session, I can then access that session data on the same page but I just changed my site around to use mod-rewrite to change the URL's and the only thing that I can seem to think of is on my signup form I cannot access these session variables anymore and now that I use mod-rewrite the url is like this domain.com/account/new and it used to be domian.com/?p=account.new so now it appears that it is in a differnt folder, could that have something to do with it?

I have tried debugging it a lot and that is the only thing I can come up with is maybe because it appears to be a different directory now because of the mod-rewrite maybe that makes the session unaccessible?

Answer 1

Are you sure you're starting sessions on every page you're accessing? I would check to make sure there's

session_start();

Wherever necessary.

Also, what does

print_r( $_SESSION );

return? Anything at all? If not it would probably indicate what I was saying.

Answer 2

I would check that you're not changing domains. E.G. domain.com -> www.domain.com

Normally a cookie is used to track the session id, and by default, the cookie is tied to a single domain. I.E. If the session was created at www.domain.com, when you visited login.domain.com the cookie wouldn't be sent resulting in no session information.

Answer 3

it happened to me once .. maybe u have a similar scenario. the session variable was temp and i would destroy it once it was outputted to the screen.

with mod rewrite if u are routing everything , if there is a broken image , that might be redirected to ur php script as well , it would in the back ground print out the error and destroy that session var.

just a thought!