Fatal error: Uncaught mysqli_sql_exception: Unknown database 'elselt' in C:\xampp\htdocs\bhis1\elselt\db.php:10 Stack trace: #0 C:\xampp\htdocs\bhis1\elselt\db.php(10): mysqli->__construct('localhost', 'root', Object(SensitiveParameterValue), 'elselt') #1 C:\xampp\htdocs\bhis1\elselt\index.php(1): include('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\bhis1\elselt\db.php on line 10