(Information contributed by Edward)
In the Philippines, out-of-school youth can take the Alternative Learning System program in the Department of Education. There is like a training for 10 months or so, then the next year, the youth can take the Accreditation & Equivalency Test. If the youth passes the test, then the youth gets something which is equivalent to an elementary or highschool diploma (I think it goes something like, if you are to take the test atleast 12 years old, then it's elementary diploma, but if you're atleast 15 or 16 years old then it's highschool diploma).
More info here, on the wiki: