error?

[Anon]

Every time when i try to set a cookie
i get the following warning message:

Warning: Cannot add header information - headers already sent by (output started at c:\apache\htdocs\cookie.php:10) in c:\apache\htdocs\cookie.php on line 12

what is that?

[Anon]

Hi,

cookies must be set before any headers or html code:

Wrong:

....
<?PHP setcookie(......); ?>
....

Wrong:
empty line or any spaces before calling setcookie(), e.g.:

<space><space><maybe empty line>
<?PHP setcookie(......); ?>

....

Right:
<?PHP setcookie(......); ?>

Right:
<?PHP
<tons of php code without any output>
setcookie(.......);
?>

Greetings,
Thomas