Fatal error: Uncaught Error: Undefined constant "button" in /home/codezz01/www/golf_sys/asp1/course/login.php:39 Stack trace: #0 /home/codezz01/www/golf_sys/for/course/login.php(6): require() #1 {main} thrown in /home/codezz01/www/golf_sys/asp1/course/login.php on line 39