Fatal error: Uncaught TypeError: sqlsrv_begin_transaction(): Argument #1 ($conn) must be of type resource, false given in C:\wamp64\www\vermi_mobile\9.1\get_tkn_mst.php:6 Stack trace: #0 C:\wamp64\www\vermi_mobile\9.1\get_tkn_mst.php(6): sqlsrv_begin_transaction(false) #1 {main} thrown in C:\wamp64\www\vermi_mobile\9.1\get_tkn_mst.php on line 6