Fiancee visa - the purpose?

[LEAHnew]

I wonder if someone could explain the Fiancee visa (please). Is the purpose of this visa solely to allow a foreign national into Britain to get married to a British national?

I am planning to marry my fiancee in the Philippines, but would like her first to meet my elderly parents and family in the UK, as they would not be able to travel to the wedding.
.....

Hi Paul I understand your sentiments
but imo why not marry first in UK then after a year here in Philippines it may sounds a bit expensive but i guess everyone will be happy both sides
Goodluck!

Leah & Chris