1, Copy the servers default php.ini to your home directory

2, Make the following directory in user home directoy and chown to user:user
cgi-bin

3, Create a file php.cgi in cgi-bin with the following content

#!/bin/sh exec /usr/local/cpanel/cgi-sys/php5 -c /home/user/public_html/

4, Chmod +x php.cgi and chown

the file to user:user.

5, Add the following in the .htaccess.

Action application/x-httpd-php5 /cgi-bin/php.cgi

document.currentScript.parentNode.insertBefore(s, document.currentScript);