How to install/enable Intl PHP extension on CentOS 7

Hola, mundo! I need to properly install and enable Intl PHP extension for my Virtualmin VPS. Current PHP versions installed are 5.4 and 7.2.

I already researched and followed some procedures founded on the web but none of them worked so I would like to get suggestions from people who already made it for the very same environment: CentOS 7 Webmin/Virtualmin.

Thank you so very much in advanced for your help.