Remi Repository - (See http://rpms.remirepo.net/) Remi Collet maintains a large collection of RPMS, including latest versions of PHP etc. He's also got an FAQ at http://blog.remirepo.net/pages/English-FAQ . Note that this is a collection of repos, and using the -safe series will ensure that nothing from the base CentOS Linux distro is overwritten or replaced. However, be aware that this repo does not play nicely with other third party repos - for example, Remi's packages contain Obsoletes: lines for packages from both IUS and Webtatic repos and thus will automatically replace them with the .remi version. This may not be the desired behaviour and you should be careful with enabling this repo for that reason.