User defined touch-button menu (Softkeys)

[Arch]

(06-23-2019 09:14 PM)Gene222 Wrote:  

PHP Code:

KEY K_Vars()
BEGIN
  LOCAL ch_num,ch_items,func_list;
  // choose items
  ch_items:={"SIN","ASIN","COSH","ACOSH"};
  // function list
  func_list:={"SIN()","ASIN()","COSH()","ACOSH()"};
  CHOOSE(ch_num,"Functions (Esc to exit)",ch_items);
  IF ch_num==0 THEN  //Was Esc key pressed?
    RETURN("");
  ELSE
    RETURN(func_list(ch_num));
  END;
END; 


I tried this code. Got no error during checking. However, I can't execute it! ...weird...