CAN'T ADD HEADER INFORMATIONS!!!

Anon

Hey guys,

need your help.

i'm always getting this error:

Warning: Cannot add header information - headers already sent in /www/music/public_html/cms/index.php3 on line 3

isn't it possible to use the header statement after a require statemant?

the first 4 lines of my script:

<?PHP
require("init/init.php3");
header("Location: main_index.html");
exit;

Anon

To the best of my knowledge, you can use a require() or include() statement before sending the header. At least I've never run into any problems with it. This is going to sound kinda obvious, but is "init/init.php3" outputting anything? If so, that is the source of your problem. If not, try upgrading to PHP4. There is a setting in the PHP4 config file that will allow you to send output before the header() is called. However, according to the comment in php.ini, it does slow down the php egnine's outout layer. Although I don't know what they are, you can also use output buffering functions with the script to force the header. Hope this helps!!

Cheers,

Geoff
www.mithril.com

Anon

I was reading about this problem in a PHP book this morning, where a similar problem is discussed. The text is about cookies and related problems, but the principle is exactly the same. I'll quote the relevant lines:

"A single space, a newline character, or any other text (whether plain HTML or printed from PHP) could be the cause of this [problem], so look over your script carefully. This also applies to any files which are included with include() or require() before the setcookie() call, or which are require(d) in the auto_prepend directive in php.ini. The HTTP response header which contains the "set_cookie" requests is sent ot the browser immediately if other output (such as text) is generated. Hence PHP cannot add the necessary information to the HTTP response header anymore, thus causing the warning message".

In other words try to invert the order of header() and require().

Bye,

Anon

You probably have either an echo or a print or space in your include file.
Make sure that you don\'t have it like this in the included file.

<?php
bla bla bl
?>

<?php
koook kkoo
?>

Then you send something to the header.

Use:
<?php
bla bla bl

koook kkoo
?>

Good luck.