Hey i can do that in $php too!

    function execute($order, $callbacks){
        foreach($order as $i){
            $callbacks[$i]();
        }
    }

    function abcProcs(){
        foreach(func_get_args() as $f){
            eval("function $f() { echo '$f'; };");
        }
    }

    abcProcs("A","B","C");
    execute([0,0,1,2,1,2], ['A','B','C']);

edit:

you don't have to quote the function names (just to show they are really functions and not closures):

    execute([0,0,1,2,1,2], [A,B,C]);