What version of php comes with RHEL 7

I was required by our IT department to use RHEL 7 on a new WebServer.
We are going to use php and mariadb.
I have an application that I want to run PHP PRO and it requires PHP 5.5.

Can I update to php 5.6 on RHEL 7 safely.

Will the following work?
https://access.redhat.com/solutions/2705621

Please advise. Our server is not live yet so I have not registered RHEL 7

Thank You,
Craig