Warning: Cannot add header information - FIXES

General Joined: Mar 22, 2003 Posts: 5233 Location: USA

If you are getting these kinds of errors (line numbers will vary)

Code:

Warning: Cannot add header information - headers already sent by (output started at /usr/local/psa/home/vhosts/xxx.com/httpdocs/header.php:32) in /usr/local/psa/home/vhosts/xx.com/httpdocs/includes/sessions.php on line 251

try placing an .htaccess file in your nuke root directory that contains this line

Code:

PHP_FLAG output_buffering on

If you already have an .htaccess file then just add that line to it.

Sergeant Joined: May 30, 2003 Posts: 88

Just a small adition. I found this solution on phpbb forums. If you edit the file that complains about errors it will also work. In the abve case you will need to edit file sessions.php. More than likely line 251 would be a code attempting to set cookie. Add a "@" simbol in front of it and errors will go away. I have used this trick several times and it worked every time. Might be more time consuming than Raven's solution but if you don't have access to .htaccess file or your server doesn't support it - this will do the trick.

General Joined: Mar 22, 2003 Posts: 5233 Location: USA

True. The only drawback to this is that it also hides all errors concerning the call. So, if, for instance, the file/table became innaccessible for some other reason, you would have to deduce why as opposed to seeing a warning/error about the real problem.

Nuke Soldier Joined: Feb 21, 2004 Posts: 14

Maybe this affects it somehow, but I've never found anything wrong, I find that making the 2 lines in session.php (lines 249 and 250) into comments (by adding // at beginning of each line) it makes the errors go away, and seems to function normally.

Corporal Joined: Aug 05, 2004 Posts: 53

Raven, would your solution work even if I am using IIS and not apache?

Posted: Mon Aug 09, 2004 7:28 am

-More than enough good solution, were given by Wind from phpnuke.ru
1) In header.php after
$header = 1;
insert code
if (!ob_get_level()) ob_start();

2) Sometimes you need to add in footer.php
ob_flush();
flush();
Just before
die();

Nuke Cadet Joined: Aug 15, 2005 Posts: 2

Thank you very much! the solution under #1 fixed my issue immediately!

Thank you!

Corporal Joined: Feb 04, 2004 Posts: 55

edogs solution worked for me with regard to forum problem.

for reference this was solved on a Sun Netra X1, running FreeBSD6.0-STABLE, running apache 1.3.x and php-4.4.x

Thanks a million to all contributors.

One day I too will be a powerful contributor, but for now I must be satisfied with stupidity. Cool

Kali