Warning: Undefined array key "PackSerNo" in G:\HOST\wmsdemo\packing_unpak.php on line 6

Fatal error: Uncaught TypeError: sqlsrv_query(): Argument #1 ($conn) must be of type resource, bool given in G:\HOST\wmsdemo\packing_unpak.php:12 Stack trace: #0 G:\HOST\wmsdemo\packing_unpak.php(12): sqlsrv_query(false, 'SELECT * FROM W...', Array, Array) #1 {main} thrown in G:\HOST\wmsdemo\packing_unpak.php on line 12