Warning: mysqli_connect(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in C:\xampp\htdocs\assembly\dbconnect.php on line 2

Warning: mysqli_error() expects parameter 1 to be mysqli, bool given in C:\xampp\htdocs\assembly\dbconnect.php on line 4
oops connection problem ! -->