problem with setcookie

Posted by Simon on Stack Overflow See other posts from Stack Overflow or by Simon
Published on 2010-03-15T10:51:32Z Indexed on 2010/03/15 10:59 UTC
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php

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xampp

there is one think, i can't understand anyway:((( when i try to set cookie(it is on line 28 in login.php), browser returns me an error!!!

Cannot modify header information - headers already sent by (output started at C:\xampp2\htdocs\video\index.php:9) in C:\xampp2\htdocs\video\login.php on line 28

but on line 9 in index php, i haven't any header!!! there is a tag!!!
i cant understand it!!! can somebody tall me why it returns me such error?

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