Fatal error: Uncaught TypeError: sqlsrv_query(): Argument #1 ($conn) must be of type resource, bool given in G:\HOST\wmsdemo\getprefixno.php:8 Stack trace: #0 G:\HOST\wmsdemo\getprefixno.php(8): sqlsrv_query(false, 'select id,prefi...') #1 {main} thrown in G:\HOST\wmsdemo\getprefixno.php on line 8