Warning: mysqli::mysqli(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in C:\xampp64\htdocs\nt_nsw\connect.php on line 2

Warning: mysqli::set_charset(): Couldn't fetch mysqli in C:\xampp64\htdocs\nt_nsw\connect.php on line 3
Failed to connect to MySQL: Access denied for user 'root'@'localhost' (using password: NO)