Can I ask why you use late static binding while you don't want your constant value to be changed/overridden by child classes? IMHO, `self::FOO` is all you need.
Personally, I don't use late static binding with class constants since the coding standard rule I previously referenced forbids this, but I don't think a coding style rule should be our only possibility to disallow constant overriding. After learning about the strange behavior Nikita pointed out, final constants would be even more useful than what I initially thought. I agree we should fix the weird behavior but that’s another topic. My point is actually what’s your scenario for a final constant? If you want to make sure the value you access are not changed by child class, `self::` can serve the purpose already. If you want to make sure child classes can access the original value, `parent::` or `ParentClassName::` can do the job as well. Regards, CHU Zhaowei
