Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1049] Unknown database 'inventory' in C:\xampp\htdocs\inventory\includes\config.php:23 Stack trace: #0 C:\xampp\htdocs\inventory\index.php(5): Database->__construct() #1 {main} thrown in C:\xampp\htdocs\inventory\includes\config.php on line 23