Step 1: Go to yum folder [root@esjeruk server]# cd /etc/yum.repos.d/ Step 2: Add new repo [root@esjeruk yum.repos.d]# vi C5.repo [c5-testing] name=CentOS-5 Testing baseurl=http://dev.centos.org/centos/$releasever/testing/$basearch/ enabled=1 gpgcheck=1 gpgkey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing includepkgs=php* Step 3 : Upgrade [root@esjeruk server]# yum install httpd php php-mysql php-gd php-mbstring php-mcrypt mysql mysql-server Step 4 : Check Version [root@esjeruk server]# php -v PHP 5.2.10 (cli) [...]