Centos 5.5 'i php 5.2.1 e güncelleme

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

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

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