Alguém pode me explicar o que significa este erro:
Warning: Cannot send session cookie - headers already sent by (output started at c:\arquivos de programas\apache group\apache\htdocs\autentica.php:8) in c:\arquivos de programas\apache group\apache\htdocs\autentica.php on line 80
Warning: Cannot send session cache limiter - headers already sent (output started at c:\arquivos de programas\apache group\apache\htdocs\autentica.php:8) in c:\arquivos de programas\apache group\apache\htdocs\autentica.php on line 80
