Reading so much different information

Is it safe to say that a child born in the Phils of a British father/Filipina qualifies as a British citizen and can obtain a British passport ?

I'm a full British citizen, family going back 100's of years. Only point that out for clarification so not to be confused with other citizenships.

Am I right that I may only need to ensure my name is on the birth certificate and maybe a good idea to have DNA report for proof ?

Is there anything else that I should be aware of?

Cheers in advance.

Gerry