Saliara

Lantana camara

They are Lantana camara but I think they have many hybrids. In Australia they were introduced and have taken over a lot of native bushland causing lots of problems so they aren't that popular over here. They do have a nice flower but in the wild the bush is very ragged looking and not very pretty.

Saliara (Lantana camara) from familia Verbenaceae

yep, seems you're right. Also called shrub verbenas according to wikipedia.

I think they're called lantana... at least that's what they call the ones at the garden centers.

I see these tiny flowers allover the Philippines. I don't know how they're called though.