History: Upgrading PHP to 5.2 on CentOS 5

            This is my preferred way to upgrade PHP to 5.2 from the default 5.1.6 on CentOS 5.

You need to be root.

1) Make a reference to the CentOS5 Testing repo

Create the file /etc/yum.repos.d/centos-test.repo and put the following lines in it.

{CODE()}
[c5-testing]
name=CentOS-5 Testing 
baseurl=http://dev.centos.org/centos/5/testing/$basearch/
enabled=0
gpgcheck=1
gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing
{CODE}

2) Update php using yum as follows

{CODE()}
yum --enablerepo=c5-testing update php
{CODE}