[PHP] session php mysql ,,,,help

Hi everybody I want to start a session after a user validation, I have my variable I want to register : $login the code to start my session is: session_name(); session_start(); session_register('login'); session_encode(); $url="Location: mypage.php?PHPSESSID=".$PHPSESSID; header($url); ?> a

[PHP] sessions help

I m working whit session's and I had this error : Warning: Cannot send session cache limiter - headers already sent (output started at /home/web/validacion.php:8) in /home/web/validacion.php on line 47 Warning: Cannot add header information - headers already sent by (output started at /home/web/