Hi there simon_87, welcome to the forum.
In order for your g/f or Fiancee to be married to you in UK she will need to apply for a Fiancee Visa.
Take a look here for some info:-
http://www.ukba.homeoffice.gov.uk/pa...civilpartners/
May I also suggest you consider the Alternative Vote (can't say we not topical) which is to marry in Pinas and use the Spouse Visa route.
You can find plenty of helpful views here on the forum just do a search.
Hope it helps.
