[RESOLVED] HEaders already sent?

[team_lh_Max]

Hi there,

I have a problem. As a n00b I started working with includes a lot, but now that i get to sessions and cookies i run into troubles like it seems.

On my website i get the header and footer by includes, and the header itself for example gets the navigation bar or blocks by includes again.

Now that I built a login system I always get the following error:

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/www/web375/html/lhdev/PHP/de/elements/navigation-bar.php:35) in /home/www/web375/html/lhdev/PHP/de/usersystem/admin/login.php on line 24

Does this matter and is there a way to fix this without rebuilding the whole website?

Thanks for your help in advance
Regards
Max

[bpat1434]

do the session/cookie stuff before the includes.

no output can be before you modify the headers of the page (session info). So you need to start your session prior to any output (including whitespace) to the browser.

[team_lh_Max]

oh lol, that's how easy it is?

Thanks a lot!
😃