Upgrade PHP for CentOS 6 Using Additional Repositories

PHP 5.3 to 5.6 Upgrade for CentOS Using External Repos

CentOS Linux is often an option when configuring a Virtual Private Server (VPS). CentOS is designed for stability, being based upon Red Hat Enterprise Linux (RHEL). This means that although it has a long shelf life it may not have the latest features available to the Linux community. To help overcome this other repositories can be used to update the CentOS installation. Here is a list of some alternative repos for CentOS that provided various updated packages:

CentOS PHP UpgradeOne package that may require updating is PHP. CentOS 6 will be supported until 2020 but comes with PHP 5.3, a few point releases behind the current PHP version. In this article the PHP available in CentOS 6 is updated to a later version. This tutorial is based upon a VPS running a minimal installation of the latest version of CentOS 6, the 64 bit version. The tutorial was tested on a Virtual Machine (VM) duplicate of the VPS on a local machine to ensure that the configuration steps correctly worked before applying the upgrade to live environment. Always have a backup of live data and always test upgrades on a duplicate test system. This minimises the risk to a live system.

It is assumed that the VPS is accessed via a Secure Shell (SSH). This method of access can be duplicated on a local test environment to replicate the real world set up. To upgrade PHP log in to the VPS and install an alternative repo, then use yum to install the later PHP version. Here repositories from Les RPM de Remi is used. Continue reading