Question

This is my code:

// Save stuff to session
$_SESSION['uid'] = $uid;
$_SESSION['name'] = $user_profile[name];

// Redirect to test page
header( 'Location: http://www.justwalk.it/test.php' ) ;

If I print session instead of redirecting I get it with no problems:

Array ( [uid] => xx [rank] => xx  [name] => xx ) 

However when redirecting in test.php I already can’t print the session. The only code in test.php it is:

<? session_start();
print_r($_SESSION);?>

But it prints array() and $_SESSION['uid'] doesn’t return anything at all.

I don’t believe the session has been unset as it sometimes pops out in other places on my page. It’s simply not accessible all the time. And I don’t know why. What am I doing wrong? Or if I’m not doing anything wrong what could be the reason for this problem?

Answer 1

If there is no code unsetting the session, it might be worth checking if you are accessing the original script using the non-www version of your URL and then redirecting to the www one.

Another cause could, as T1000 mentioned, be output being sent before session_start(), UTF8 BOM character is notorious for causing sometimes invisible output.