What is that one? Haven't seen it...
Haven't announced this one officially, but you may install it.
It uses the Zend OPcache functionality to cache PHP scripts, this can help accelerating the execution of PHP since the source doesn't need to be compiled each time.
#php -v
PHP 5.4.41 (cli) (built: Jun 16 2015 09:20:38)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
with Zend OPcache v7.0.5, Copyright (c) 1999-2015, by Zend Technologies