Session Variable Passing

[Maximus9999]

What is the best way to for multiple sessions to see one particular value?

Eg) I want multiple players to see the same dice roll.

[Wisest Guy]

Give each session a common reference:

GetDataFromSharedReference($_SESSION["CommonReference"]);

And GetDataFromSharedReference could read a file, a database, another session...

[Maximus9999]

So let's say i make player 1 be the dice roller and updates a database.
I would use the other players to just read that value player 1 entered?
Would that be sufficient?

Also, how would you go about reading a value from another session?

[Maximus9999]

Does anybody know how to pass a variable to all sessions?