I am trying to control access to some web site "back end" pages via session & session variables.
I am using a technique I have used on other sites & it has always worked perfectly, until now.
Maybe there is a change in php 5?
See attached php files.
The chk_login.php is used to check the validity of the login & go to the admin menu. The admin_menu.php is self-explanatory.
But they don't work. After the timeout, the admin_menu page is just a blank page with the <!DocTYPE and <html tags at the top, rest of page completely blank.