Upgrade to PHP 5.2.10 - CentOS5 using YUM

There is a version of PHP (5.2.10) in CentOS’s Testing repository. You could either download each rpm and install, or set up your yum to install from the testing repository.

Install the testing repository’s GPG key:

rpm --import http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing

And download the CentOS-Testing repo file:

cd /etc/yum.repos.d
wget http://dev.centos.org/centos/5/CentOS-Testing.repo

Now you can install/update to PHP 5.2.10 by running

yum --disablerepo=* --enablerepo=c5-testing update php