Sometimes while reading/writing modern PHP it feels like it's more functional than OOP. It's definitely easier for your code to be pure and simple instead of becoming a stateful mess. To make it a stateful mess you'd have to go against many modern best practices. I think I don't really understand what kind of Java monsters people have worked with in the past.

I will explicitly exclude legacy code from my previous statement, where globals, static calls with side effects, stateful objects and inheritance abuse were common.

Now if only I had all the advanced type system features :/.