SQL Connection

Hai, i like using CodeIgniter, because is good practice for code, but now i stack with error SQL SERVER Connection using "sqlsrv" driver in CI, the error look like this "Unable to connect to your database server using the provided settings."

my specification :
PHP : v 5.6.31
CI : v 3

thanks for your attention and answer

Have you installed sqlsrv? If so, you have the wrong settings in application\database.php

But first upgrade your server to PHP 7.
After that, install the drivers. Skip step 1 if you already have a SQL Server.
https://github.com/Microsoft/msphpsql/#get-started

Hello,
Connect to a SQL Server instance
1.Start SQL Server Management Studio. The first time you run SSMS, the Connect to Server window opens.
2.In the Connect to Server window, follow the list below: For Server type, select Database Engine (usually the default option).
3.After you've completed all the fields, select Connect.
Regards,
Mika Hawkins

Mika Hawkinsss