How to run man with formatting in not interactive shell?

Question

I have webpage that process ANSI codes and output from man command (underline A as A\x08_) and I call php shell that execute bash -c "<command>" and print the output on the webpage. On the server (it introduce itself as "CloudLinux Server release 6.5 (Pavel Popovich)") man command print Ntroff (and they are in bold/underline) but on my local (XUbuntu) the output is not formatted.

Why man command differ on these two distros and How can I create function or alias for man that will always print ntroff formatting?

Answer 1

Found in man man there is environment variable MAN_KEEP_FORMATTING that need to be non empty, but it's not on that server.