Warning: Undefined array key "DepID" in G:\HOST\wmsdemo\getmax_loading_tripno.php on line 4

Fatal error: Uncaught TypeError: sqlsrv_query(): Argument #1 ($conn) must be of type resource, bool given in G:\HOST\wmsdemo\getmax_loading_tripno.php:25 Stack trace: #0 G:\HOST\wmsdemo\getmax_loading_tripno.php(25): sqlsrv_query(false, 'SELECT ISNULL(M...') #1 {main} thrown in G:\HOST\wmsdemo\getmax_loading_tripno.php on line 25