Refreshing Cache Through Php Header Function Yields No Result?
I am building a website for a client. He wants a login page with a "Your account" page for his clients. I am using a combination of javascript and php.
Upon succesful login $_SESSION variables are set to 1.
example: $_SESSION['logged']= 1;
If the client logs out due to idle time or pressing 'logout' these values are set to zero.
example: $_SESSION['logged']= 0;
Upon loading of "your account" and any of its sub-pages, that page checks $_SESSION['logged']. If the value is zero it redirects automatically back to the login page. Providing oppertunity to log in again if you wish.
The checking of $_SESSION['logged'] is supposed to redirect even if the client has logged out, but has pressed "back" on the browser to try and see a login page.
The page does not do this. Pressing "back" reveals the page. Interacting with the page or pressing "refresh" THEN causes it to redirect.
I need the page to auto-redirect, not show. I am aware that it is the page being cached and keeping those values until you interact with it. I have fully tested the header function in php. Using 'must-revalidate' & 'no-cache' and other version! (most info from php.net).
I get no errors when testing the pages, so my code is correctly spelled! But there is simply no reaction by the page, it just does what it does, which is not what it is supposed to do?
I ask for experience! Is there a specific way of doing the header functions? Perhaps it must be placed in a specific place in the page? And how can i check that the page is actually using the functions and not just moving over them with no action taken?
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