Fatal error: Uncaught Error: Call to undefined function sqlsrv_connect() in C:\xampp\htdocs\UnityAccount\inc\db_connect_auth.php:12 Stack trace: #0 C:\xampp\htdocs\UnityAccount\addAccount.php(66): include_once() #1 {main} thrown in C:\xampp\htdocs\UnityAccount\inc\db_connect_auth.php on line 12