We need to install PDO_DBLIB extension to run in php 5.6 as installed by plesk 12.5
It is easy enough to install this for the php 5.5 version that comes with ubuntu (apt-get install php-sybase) However, we are struggling to get this installed for the other versions of php that are provided by plesk.
Normally php extensions are installed with these instructions : [url removed, login to view] but this does not appear to work for PDO_DBLIB
We need the extension installing on a test server and documentation to allow us to install on other servers.
We can provide a test VM for you to work on.