Connect Laravel using ubuntu in a MSSQL BD

Good morning, can anyone help me? I'm trying to connect my project to laravel hosted on ubuntu 14 apache2 using php 7.1 in a Microsoft SQL SERVER 2012 BD. I have already installed the FreeTDS libraries and configured them, as this link: link ... / 97bf0b45a27d6b025d670752a7c62ec6 I can connect via the terminal with the command: isql -v MSSQL sa 'XXXXXX' But when I try to make a select in laravel it appears: "Illuminate \ Database \ QueryException could not find driver. "In Laravel's .env I put it like this: DB_CONNECTION = sqlsrv Thanks for all the help.