Can't get the field = ANY(array) clause to work...

Has anyone successfully used the "ANY", "ALL", or "SOME" clause using
arrays? Cant seem to get this to work. Heres the gist of my function
which returns a SETOF INTEGER[]...

DECLARE
  id_var INTEGER[];
  record_var RECORD;
BEGIN
  id_var[0] := 1;
  id_var[1] := 2;
  id_var[2] := 3;
  FOR record_var IN
    SELECT id FROM myTable WHERE id = ANY(id_var)
  LOOP
    RETURN NEXT record_var.id;
  END LOOP;
  RETURN;
END;

I get an empty record set! Any help would be appreciated. Thanks! -Nick