Estos errores:
Warning: include(Seguridad.php) [function.include]: failed to open stream: No such file or directory in C:\wamp\www\SCCA\principal.php on line 46
Warning: include() [function.include]: Failed opening 'Seguridad.php' for inclusion (include_path='.;C:\php5\pear') in C:\wamp\www\SCCA\principal.php on line 46
Salen porque has escrito mal la ruta (asegúrate de poner bien las mayúsculas).
Y estos:
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\wamp\www\SCCA\principal.php:8) in C:\wamp\www\SCCA\principal.php on line 47
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\wamp\www\SCCA\principal.php:8) in C:\wamp\www\SCCA\principal.php on line 47
Son porque el session_start() lo tienes que poner al principio de todo, en la línea 1. Saludos
