In 14 May 2019, the Philippines became a member of the Apostille Convention. Please see below information from the authentication division of the Office of Consular Affairs, DFA. Same information has been announced by the Embassy of the Philippines in Copenhagen- https://copenhagenpe.dfa.gov.ph/
Beginning 14 May 2019, for documents issued in the Philippines for use in Denmark, the Department of Foreign Affairs (DFA) will issue Apostilles instead of authentication certificates (red ribbon). Apostillized documents need not be legalized by the Danish Embassy in Manila.
For more details, please refer to the DFA website- https://dfa.gov.ph/dfa-news/statements-and-advisoriesupdate/22114-public-advisory-apostille-convention-on-authentication-of-documents-takes-effect-in-ph-on-14-may-2019