Pass variables to functions as arguments

[yiifm]

Hello again, it's me. I'm trying to pass the value between 2 functions I tried using Global variables it works but in QM help mentioned that "Don't use global variables where not necessary. Where possible, use local variables, thread variables, pass variables to functions as arguments." I tried pass variables to functions as arguments but unsuccessfully anyone could give me an example of how to pass variables to functions as arguments. thank you very much