Hi Patrick.

When we took my boy to the Phils first time, he was 4months old.

No problems really (they sleep most of the time of course).

Just take enough Pampers type nappies for the journey, and milk of course.
The cabin staff will actually give you any help that you need as far as food/drink preparation goes, and will have supplies on the plane too, should you need any.

You will be given special seating with a fold-down 'cot' in front of you for the journey.

You will also be called to board the plane first and allowed to exit first.

Our boy was breast-fed until 2 years old, so much easier.

It's really important to keep your baby cool enough when in the Phils. Our son stayed for 4 months first trip...out in the province, and no problems at all.

Good luck and enjoy the flight and the trip.