Error in Login of My website

[shiv201345]

I host my website through Awardspace. Every thing is ok but when I am login as admin or user I am getting a warning which is "Warning: Cannot modify header information - headers already sent by (output started at /srv/disk8/1065242/www/gadgetsolution.co.cc/include/header.php:2) in /srv/disk8/1065242/www/gadgetsolution.co.cc/login.php on line 21". If any one can help me help me.................

[Natdrip]

Some where before the header statements, you're echoing out some data. You can't do that.

No data can be sent before headers. See: http://us.php.net/manual/en/function.header.php

You can use ob_start & ob_flush to buffer the output so that you can send data before headers.

Either fix the echo that's being sent before the header or put ob_start at the very beginning of the php file and at the very end of the php file.

some times there is a white space from an include file that can cause this ie.

<?php
 code
?> . . . . .  <===== trailing white space

[NogDog]

Note that session_start() and setcookie() send HTTP headers, not to mention the header() function, of course.