This is what basic education is going to look like for Filipinos.
The nearest public school should be able to give you more information on this.
To take the ALS, you need to be at least 11 years old (for the test that gives you an elementary school diploma) or 15 years old (for the test that gives you a high school diploma).
Incidentally, the PVT is taken not only by homeschoolers but also by children who go to regular private schools that have not been accredited by any of the Philippine's school accrediting bodies such as the PAASCU.
In order to be able to take the PVT, you need to keep records of your child's work: answered textbooks, scrapbooks, journals, work portfolio, etc. The key is "the more, the better." Dep Ed needs to be sure that you did educate your child all those years.
We have not been able to get definitive information on whether the University of the Philippines accepts independent homeschoolers (i.e., not from an accredited homeschool provider).