According to the U.S. Consulate in Cebu, the legal age for sex in the Philippines for everyone is 18. the old Spanish law is not in effect.
Here's the skinny on it. The *Legal* age of consent is 12. However their is another law which I forget the name that makes it illegal when under 18 if the sex is coerced through numerous different means such as *promises*, money, or pretty much whatever they want to call coercion. So while legally you could go have sex with a 12 year old who consents the family or police will come after you for *coercing* the minor somehow into sex. Further its also another crime to have a female minor under the age of 16 in a non family members house or hotel without parent or adult family member present. Now isn't this where is gets tricky. The added 2 laws were more so of an attempt to hold foreigners accountable for sex with minors while not outright making it illegal. Hence a filipino could easily have sex with a minor (consentual) and its just fine but if its a foreigner your going to be paying up big quick and if try and fight it prison followed by a permanent ban.