Symfony / PHP7 APC -> APCu

If you use ubuntu:

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php-apcu-bc

This answer is obsolet. The correct answer is the one from François Breton.

In PHP 7 you have to add an additional module to your PHP setup: apc.so This is a module that enables backward compability to apc for apcu. This is kind of confusing...

See http://php.net/manual/de/apcu.installation.php for more info.

If you are using packages from https://deb.sury.org/ (ondrej ppa), you can install it via apt-get install php-apcu-bc.

You can update Doctrine, at least its doctrine/cache dependency (>= 1.6) APCu now supported :-)