Alright so this explanation might be a little... wonky?
So to break it down imagine this scenario
I add information to the $_SESSION using a button on Page A this all goes fine. I click to go to Page B, everything is still fine and the $_SESSION values are all there. But when I go back to the previous Page A using the browsers back button my added value is not there for some reason.
I am trying to find out why this happens and if I can prevent it from happening, because if I reload the page again with F5 the information is there no problems whatsoever.
Thanks already.