I have a phalcon website on php 5.6 running with opcache on a nginx server. It works fast and stable, but allthough i have some questions about caching.
In the documentation I see that phalcon supports different caching mechanisms like APC, XCache, Memcache & file. What i've read on several websites is that opcache can be assumed as a 'successor' of APC and opcache will be delivered as standard in current and future php releases.
Question 1. Should i still need a caching mechanism to cache extra data or is it not necessary if my application uses zend opcache?
Question 2. There is a user cache for opcache called APCu what seems to be a replacement of APC for opcache users (allthough still beta), does anybode has experience with APCu and is this compatible with the Phalcon Backend and frontend APC cache?