Download the following two packages from EPEL repo.
Then install them-
Code: 
rpm -ivh libmcrypt-2.5.7-5.el5.i386.rpm
rpm -ivh php-mcrypt-5.1.6-5.el5.i386.rpm
biplab Reviewed by biplab on . Trying to install mcrypt extension I'm trying to install mcrypt extension so i typed: yum install php-mcrypt but it says No package php-mcrypt available. How can I fix this? I am using centos 5.6 Rating: 5