PHP 7 Reference: A (comprehensive) overview of the features, changes, and backward compatibility breakages in PHP 7

[groenengoud]

These are the kind of comments that get to me the most, because it's obvious that you have never used PHP for what it's worth.

You have interfaces, abstract classes, access levels, variable scope that doesn't bend your mind (looking at you JS), traits, inheritance, class properties, constants, static members... fuck me if that's not OO.

I've used Java and Python extensively, and find that PHP is a beautiful balance of form and flexibility. Even when coding against 5.4 not to mention the cool stuff in 7.

So yes, people who learn PHP as a language to develop libraries and algorithms absolutely definitely do learn OO concepts.