Why warnings when setting cookies

Anon

I'm quite new to PHP and scripting, really need help.

Lately I'm trying to test some scripts (namely xmb and phpBB, popular bulletin board scripts) and frequently run into this problem:

Whenever the program goes to authenticate the user by setting a cookie, I get a warning like this (both for xmb and phpB😎:

Warning: Cannot add header information - headers already sent by (output started at c:\program files\apache group\apache\htdocs\phpbb\config.php:2) in c:\program files\apache group\apache\htdocs\phpbb\auth.php on line 254

The scripts used to work, but I don't know what has happened. Is it my MySQL or Apache server? I faced a similar problem on another machine running Apache server on Win2000 (i.e. the scripts worked for a while, then this error crops up. Then I can't login with any username cos I can't set any session cookies)

My machine is running Win98, running Apache 1.3.20 and MySQL 3.23.38 with PHP4.0.5
Please help! I suspect it's a very simple fix cos I hardly did anything and it went from working to not-working in a short time!

Thanks in advance.

[deleted]

Headers must be sent FIST. you may not print/output ANYTHING before sending the headers.

Look for echo/print statements and look for raw HTML outside the <? ?> tags.

In your case, look at config.php.

parena

The error means that some output has been sent already. And because of that, you are not allowed to set any cookies. Make sure you have NO output before you set any cookies. So no HTML, nothing. Check your scripts for spaces (before the cookies get set) which shouldn't be there. They're sneaky... I bet that's the problem...