http://www.auroris.net/works/apc.class.phps
If you have APC compiled into your PHP binary or activated as a module, this will allow you to use APC as your data store. This container is designed for 1.x (Beta).
If you do not have APC installed or loaded, then this will not work.
APC functions as a bytecode cache so your server only has to compile once; further calls to the PHP script are made to the in-memory copy of the bytecode. APC can also store user data; this container does so.