Fatal error: Uncaught ArgumentCountError: session_unset() expects exactly 0 arguments, 1 given in D:\xampp\htdocs\_0\06_Hotel\pack\logout.php:3 Stack trace: #0 D:\xampp\htdocs\_0\06_Hotel\pack\logout.php(3): session_unset(NULL) #1 {main} thrown in D:\xampp\htdocs\_0\06_Hotel\pack\logout.php on line 3