Thanks Rhoody Actually, I guess I didn't really specify if I was needing domestic or international, so probably my fault!!
It is only Philippine airports that collect terminal fees. When I left HK early this year, I was surprised that they did not collect any fee at all, considering that their airport was voted the best in the world for seven (7) consecutive years. I guess it is only Philippine airports that collect terminal fees.
In the Ticket! The rest of the World Collect the fee, in the Ticket and pass it on to the Authorities, Jack P.
There are more countries that also collect terminal airport fee from departing passenger. I.c. Brazil, at least they still did it in 2010. The reason why a system like this is still being maintained; money collecting this way can much more easily be transferred to destinations than actually meant for. But it's only a guess of course.