Microsoft Drivers v4.3.0 for PHP for SQL Server released

[scara]

More at https://blogs.technet.microsoft.com/dataplatforminsider/2017/07/18/microsoft-drivers-v4-3-0-for-php-for-sql-server-released/ .

We could use pecl install sqlsrv in https://github.com/danpoltawski/moodle-php-apache/blob/365857d8191d2a145486069fa7e707c6143b11be/root/tmp/setup/php-extensions.sh#L48, but it is wise to stick with a selected version (now 4.1.6.1 <= February 9, 2017).

HTH,
Matteo