PHP isn’t consistent with itself and has abstraction leaks for things that it shouldn’t. PHP does not bring me joy.
Of course I’m speaking succintly above. It’s not that bad, but it’s not that much better either. I’m not going to stockholm myself into using a language just because it’s “mature” if I don’t have to. I may have that relationship with JavaScript but at least in that case resistance is somewhat futile and there are practical benefits to be had.
All the above said, do enough real work in any language and you'll find cases where the idioms of the language don't map to your work.