A Philippine Visa is an endorsement made on a travel document by a consular officer at a Philippine Embassy or Consulate abroad denoting that the visa application has been properly examined and that the bearer is permitted to proceed to the Philippines and request permission from the Philippine Immigration authorities at the ports of entries to enter the country.
The visa thus issued is not a guarantee that the holder will be automatically admitted into the country, because the admission of foreign nationals into the Philippines is a function of the immigration authorities at the port of entry.
Definition of a Foreign Tourist (Temporary Visitor)
A "foreign tourist" is defined as a person without distinction as to race, gender, language or religion, who is proceeding o the Philippines for a legitimate, nonimmigrant purpose such as sightseeing, sports, health, family reasons, training or study (excluding enrollment in schools for the purpose of obtaining a title or degree), religious pilgrimage, business, cultural and scientific purposes.
The Philippines grants visa-free entry to passport holders of certain countries while requiring a visa to others. You may wish to check this link on the website of Department of Foreign Affairs' Office Consular Affairs, GUIDELINES ON THE ENTRY OF TEMPORARY VISITORS TO THE PHILIPPINES, if your passport will require a visa for entry to the Philippines by selecting the country that issued your passport.