Re: Is header() malfunction due to PHP5.3.3 -> 5.4.11 transition?

Matijn, Thanks for the suggestion. Your suspicions were correct. I am now tracking down the culprit. Jonathan On 2/9/2013 2:34 PM, Matijn Woudt wrote: > On Sat, Feb 9, 2013 at 8:00 PM, Jonathan Eagle <jeofva@attglobal.net> wrote: > >> >> >> I'm having a problem with a very straightforward routine; one that works >> in one PHP installation but not on the other. The only difference that I >> can see between the working version and the non-working version is that >> the one that doesn't work is running on the later version of PHP. The >> following basic log-in routine works fine on my personal development >> server, running PHP 5.3.3, but doesn't work on the production server, >> hosted by 1&1.com that is running PHP 5.4.11. >> >> <?php >> require_once('../includes/initialize.php'); //<== $session object >> init'd and set to false >> >> if(!$session->is_logged_in()) >> { >> header("Location: login.php"); >> exit; >> } >> ?> >> >> login.php is in the same directory as the file that has this code at the >> very top of the file. >> >> Everything works as expected right up to the 'exit;' line. >> * $session->is_logged_in() is false >> * when tested immediately after the 'header("Loc...)' statement, >> 'headers_sent()' reports true. >> * no error messages result (like: 'header already sent', etc.) >> >> Instead of the program flow moving to 'login.php', the URL indicates >> that the destination is the original file, except that the file is empty >> - zero bytes. I've tried accessing the routine via three different >> computers, all running different MS operating systems from XP to Win7 >> and they all behave identically. The behavior is also consistent >> between browsers (i.e., FireFox, Chrome, and Windows Explorer). >> > > It seems like the header is not actually send, maybe because the headers > are already sent. > You can check what your server returned with the Developer tools in Chrome, > or Firebug in Firefox. It should have that header in its return, but I > doubt it's there. > >> >> I also did a $_SERVER variable dump immediately before and after the >> 'header(...' line, expecting to see a difference in at least one of the >> 'REDIRECT_*' elements, but both outputs where identical with the >> exception that the $_SERVER ouput after the header statement was >> executed was missing the following line: >> > > $_SERVER refers to headers that were send from client to server, the > redirect header you set is with the headers sent from server to client. > > > I would try a file like this first: > > <?php > header("Location: login.php"); > ?> > > and see if that works. Then you can investigate further. > > - Matijn >