Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1049] Unknown database 'xml' in C:\xampp\htdocs\xmll\config.php:20 Stack trace: #0 C:\xampp\htdocs\xmll\config.php(20): PDO->__construct('mysql:host=loca...', 'root', '') #1 C:\xampp\htdocs\xmll\functions.php(2): require_once('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\xmll\config.php on line 20