Virtualmin - PHP

http://www.virtualmin.com/node/12969

http://virtualmin.com/documentation/webdev/php

Virtualmin → <domain> → Services → PHP 5 Configuration → Resource Limits

Multiple PHP Versions

https://www.virtualmin.com/documentation/web/multiplephp

https://tutorials.kurtobando.com/multiple-php-version-on-virtualmin-in-ubuntu-16-04/

https://www.virtualmin.com/node/57448