Header Already set???

[Anon]

Hello,

Thanx in advance if you can give me any direction in fixing my problem!!

Now the Error Message I am getting!!
"Warning: Cannot add header information - headers already sent by (output started at imggrid.php3:88) in imggrid.php3 on line 11"

I have checked through all my code, and nowhere else is header set!! Is there any other reason why it would think that the header was already set?? Is there any other functions that will set header information that I should know about??

[saltwater]

if you want to send a header, you must be sure there is not output already sent!!, even the tiniest space outside the <? ?> tags can make this happen, also make sure you don't echo anything before sending a header as below:

<?
header ("your header");
echo "now we can output!";
?>
now we can output in plain html

[Anon]

Thanx!!! That was quick!!!!

[Anon]

Also make sure no cookies are being set either. I've encountered that problem before.