Flash Executing certain php functions

hi!

You know how php can have functions like flash…
well… When flash communicates with php

with this

myLoadVars.load("RPG.php");

or something like it…

Can i make it so it only activates certain functions?

like in my RPG.php

I have

function ONE (){
stuff
}

function TWO (){
stuff
}

function THREE (){
stuff
}

and i only want to run function ONE…

How can i script it to do that?

Thanks