Are you official christian country or christian majority secular country.
In fact in their capital city of Manila, there are quite a number of Mosques. The Muslims in Philippines are largely integrated, the only issue is in the south where there are separatists who DO NOT represent the majority of the Muslims in Filipinas.
This was one Masjid i loved to visit when I was in Manila. Al Huda Masjid:
In Mindanao's South Cotabato Province: Sultan Hassanal Masjid