Code:
Warning: session_register() [function.session-register]: Cannot send session cookie - headers already sent by (output started at *URL*/choose.php:5) in *URL*/choose.php on line 7

Warning: session_register() [function.session-register]: Cannot send session cache limiter - headers already sent (output started at *URL*/choose.php:5) in *URL*/choose.php on line 7

Does anybody know what this means? How do I fix my sessions?

Please note I've used *URL* in place of the actual URL for privacy.

Thanks!