Install PHP 5.3 on Centos 5.5

|| add PHP 5.3 Webtatic repository

# rpm -Uvh //repo.webtatic.com/yum/centos/5/latest.rpm

|| installing PHP 5.3

# yum --enablerepo=webtatic install php

or
|| update PHP 53

# yum --enablerepo=webtatic update php

|| links
| google
| webtatic