I'm not so sure those are images from the Philippines (one L, then two P's, gents).
Vegetation looks a little funny, but anything's possible.
Lest you think the Armed Forces of the Philippines (AFP) throws stuff needlessly away... The few AFP dumps I've seen (PA, PN) are really piles of mere husks of weapons, their innards long since used for spares to support a greater majority of similar arms in service. It's been correctly posted above that even the spares (as US FMA materiel) cannot be sold at all!
Rotting husks, aside, I have seen piles of well-preserved Thompsons, WW2 1911's, M3 Grease guns and the like in Armed Forces storage. With money so tight, the M3 greasegun has re-entered service with the Philippine Navy as a compact, boarding-team weapon, and in limited numbers with Marine land armor.
As for any piles of rusting rattletraps
There's no shortage of gunsmiths and enthusiasts (meself included) here in the Philippines who would love to nurse such 'excess' and incomplete husks, back into working condition, but the law is the law...