It known as Zend Optimizer+, Opcache, which can help to improve server and applications performance. It work by pre-compiling script byte-code in shared memory, so it help removing the need for php to load and parse scripts on each client request.
- yum install php-opcache
- run php -v to ensure php has this extension, will show:
- vi /etc/php.d/10-opcache.ini
- enable all of these by uncomment them: