#php -v
PHP 5.1.6 (cli) (built: Nov 29 2010 16:47:37) 
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
    with the ionCube PHP Loader v4.0.7, Copyright (c) 2002-2011, by ionCube Ltd.

# wget -q -O - http://www.atomicorp.com/installers/atomic | sh

# yum upgrade

# php -v
PHP 5.3.8 (cli) (built: Oct 31 2011 18:21:42) 
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
    with the ionCube PHP Loader v4.0.10, Copyright (c) 2002-2011, by ionCube Ltd.

Meer informatie: PHP - Atomicorp Wiki

Zie ook: Mysql - Atomicorp Wiki