Cachet/docs/setup/centos6.md

Installing on CentOS 6

The main issue with installing Cachet on CentOS 6 is the old PHP version. Laravel and Composer expect a version of PHP of greater than or equal to 5.4, which is the default that ships with CentOS. You also need the same version of the required extensions.

Remi Repo

To solve this problem, the 3rd party [http://rpms.famillecollet.com/](Remi Repo) can be used, which provides newer versions of PHP.

NOTE: This will upgrade existing versions of PHP on your system, so if you already have a PHP 5.3 requirement, you'll need to consider using RedHat's Software Collections which allows you to install PHP 5.4 alongside the systems PHP 5.3. You'll need to compile some of the extensions yourself though