install php 5.2 by yum on centos 5.5

you need to create


/etc/yum.repos.d/centos-test.repo and enter following lines in it:



[c5-testing]

name=CentOS-5 Testing

baseurl=http://dev.centos.org/centos/5/testing/$basearch/

enabled=1

gpgcheck=1

gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing