There is no need for you to obtain a visa for you to enter as a tourist in Singapore. All you need is to have a Philippine passport with a validity of at least 6 months beyond your expected date of departure from Singapore. A return or onward airline ticket is also necessary. More so, proof of fund is required for you to have that will sustain your duration of stay in Singapore. Otherwise, if you intend to enter Singapore to work, reside or study, corresponding visas are required before entering the country.