Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES)

Question

Warning: mysqli_connect(): (HY000/1045): Access denied for user \'username\'@\'localhost\' (using password: YES) in C:\\Users\\xampp\\htdocs\\PHP_Login_Script

Answer 1

The same issue faced me with XAMPP 7 and opencart Arabic 3. Replacing localhost by the actual machine name reslove the issue.