How to install and configure PHP Zend Opcache

What is Opcache you ask? Opcache is a PHP extensions that will help to¬†improve server & applications performance. There are many popular opcode caches like eaccelerator, xcache, apc, etc. ¬†Opcache is recommended in almost all…

How to install or upgrade PHP from 5.4 to 5.5 on CentOS/RHEL 6/7

CentOS 7 by default installs PHP 5.4. At the end of September PHP 5.4 came to the end of it’s life, no longer receiving security updates. A number of systems still run PHP 5.4. This…