I don't understand how array_pop is supposed to work on a SESSION array

[makamo66]

I want to use array_pop to remove the last item added to the SESSION array. So it would remove the REQUEST item. The problem is that nothing is left in the session array because I pop off the last item each time that the form is submitted. Maybe I need to use array_push to push the popped items back on to the SESSION array after the logic has been applied. I don't understand how array_pop is supposed to work on a SESSION array. Can anyone explain to me what behaviour to expect? I expected to get a SESSION array with the REQUEST item removed but I thought that I would still have all of my SESSION items.
 

[ginerjm]

array_pop is just an array function that works on any array.  Using it on a $_SESSION array is no different than any other array.  If you pop something off an array it is no longer a member of that array and that's that.   And using it on the $_SESSION array itself (and not a member array) is the same. Why do you think that using it on a $_SESSION array or $_SESSION itself would give you something different?

PS - What is this "REQUEST" item that you mention?  It is not an automatic entry that I know of.  

Edited October 29, 2019 by ginerjm

[cyberRobot]

What are you looking to accomplish? Are you writing a script that processes all the information in the $_SESSION array and/or presumably the $_REQUEST array? If so, would using something like the foreach loop work for your project? That would allow you to process everything without destroying the original array.