Editors Note: !.06 added the [Currency] arg.
Functions Documentation
View Function Edit Function
Name plyCharge
Syntax (plyCharge player [currency] number) -> number
Argument List player: The player.
[Currency]: the UNID of the currency
number: The number of credits to charge.
Returns number: The number of credits left.
Category economy, player, cash
Description Charges the player the given number of credits and returns how much the player has left.
(plyCharge gplayer 1)

Charges the player one credit and returns how many credits the player has left.
Comment Basic credit manipulation function.
The 1.06 thread
says to use objCharge instead.