Fatal error: Uncaught Error: Class "mysqli" not found in C:\Apache24\htdocs\trai\ahmedabad\classes\class_connection.php:7 Stack trace: #0 C:\Apache24\htdocs\trai\ahmedabad\index.php(2): include_once() #1 {main} thrown in C:\Apache24\htdocs\trai\ahmedabad\classes\class_connection.php on line 7