Matthew1980 - 12:06 pm on Mar 2, 2013 (gmt 0)
Hi there algalogica, and a very warm welcom to WebmasterWorld!
Firstly, are you aware that $_SESSION is in it's very nature an array anyway, anything that has: ['somevalue'] is a reference to an element within an array.
If you did Print_r($_SESSION); you would see what I mean.
The way you're trying to do this would require multidimensional arrays, so that you could create a sort of look-up table for your sessions and the values.
Have a quick google for that and I'm sure that you'll find lots of tips on that.
(from a very tired)