Session Security?

Is it secure to use If ($_SESSION[‘authenticated’] == true) /////Show secure pageCan someone just go and change where the session variable is stored to make their $_SESSION[‘autheticated’]...

Am I vulnerable to sql injection and cross site scripting (a

To start, please pardon my ignorance, I’m not a programmer but rather a student research assistant who happens to need to write some programs.Right now I’m working on a page that will take...