Official Mirrors
CentOS - Operating System
CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor. CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible. (CentOS mainly changes packages to remove upstream vendor branding and artwork.) CentOS is free.
mirror.nexcess.net/CentOSPHP - Scripting Language
PHP is perhaps the most popular scripting language in use for web development, and is used extensively by a large percentage of our clients as well as by our own developers. We are proud to host an official PHP.net mirror.
us.php.net