I really don't get why this is happening, i have 18 php files that cannot be accessed on my site before you log-in, but the first two display the following warning message :

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/sites/inciter.org.uk/public_html/c++/c_helloworld.php:2) in /home/sites/inciter.org.uk/public_html/c++/c_helloworld.php on line 3

the irony here is that each page calls the session_start() function and check_valid_user() function (that i have created), and works on all but those two pages. i call the session_start at the very top of the page.

can anyone enlighten me as to any possible cause for this warning ; the page is also displayed so in affect it works, but not perfectly lol.

do this on each page:

if(!session_id()){

         session_start();
}


----------------
Never bother to learn something not knowing which does not do you any harm, and never neglect to learn something whose negligence will increase your ignorance - Imam Jafar Sadeq

Thanks for reply, it didn't work the session_id() returned false and moved on to the session_start().

Would i not have needed to add code to add the session_id() else-where or is this automatic?

session_id() returns the session id and false if it is not set. So if somewhere you have already started the session by session_start, you are bound to have a session_id. If you haven't started it, you don't and thats how it checks it.

Another solution would be to put an @ before every session_start you have.

Edit: or having this line in your pages: error_reporting(0);
----------------
Never bother to learn something not knowing which does not do you any harm, and never neglect to learn something whose negligence will increase your ignorance - Imam Jafar Sadeq

hehehe Thank you. Yes '@' works just fine i forgot about suppressing the warnings.