Most likely Kaloula kokacii
. The dorsal pattern rules out a couple of species [which mostly don't occur in Philippines anyway], and the specific location seems to have only one recognized species.
You can use the most recently described species for SOME comparison: http://www.nhm.ku.edu/rbrown/Rafes%2...eiaKaloula.pdf
And the checklist with distributions for all amphibians: Amphibian Species of the World
This may also be of interest: http://www.asiatic-herpetological.or...2009/09_07.pdf