php 5.2.x 을 yum 을 update 하는 방법

wget http://dev.centos.org/centos/5/CentOS-Testing.repo
/etc/yum.d/CentOS-Testing.repo 생성 후 아래 내용 Edit

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

yum --enablerepo=c5-testing update php