Warning: mysqli::__construct(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in /opt/lampp/htdocs/pgi/config/Conexion.php on line 4

Warning: mysqli_query(): Couldn't fetch mysqli in /opt/lampp/htdocs/pgi/config/Conexion.php on line 5
Falló conexión a la base de datos: Access denied for user 'root'@'localhost' (using password: NO)