Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES) in D:\xampp\htdocs\feinstaub_pms7003\feinstaub_auswertung.php:3 Stack trace: #0 D:\xampp\htdocs\feinstaub_pms7003\feinstaub_auswertung.php(3): PDO->__construct('mysql:host=loca...', 'root', 'hasimann') #1 D:\xampp\htdocs\feinstaub_pms7003\feinstaub.php(1): require_once('D:\\xampp\\htdocs...') #2 {main} thrown in D:\xampp\htdocs\feinstaub_pms7003\feinstaub_auswertung.php on line 3