messaggio di errore session_start()

[mikifra]

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at c:\programmi\easyphp1-7\www\apos\atleti\atleta.php:96) in c:\programmi\easyphp1-7\www\apos\atleti\atleta.php on line 155

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at c:\programmi\easyphp1-7\www\apos\atleti\atleta.php:96) in c:\programmi\easyphp1-7\www\apos\atleti\atleta.php on line 15

[piero.mac]

Non deve esserci alcun output al browser prima di session_start()