Php 7 intl extension not working

Hi, I have installed the above extension, the script I am trying to install (moodle 3.4) keeps reporting it isn't installed or enabled.

Plugin  Status

php_extension intl
must be installed and enabled Intl extension is required to improve internationalization support, such as locale aware sorting and international domain names.

I installed the extension using the following command:

yum install php70-php-soap php70-php-intl

I have restarted both apache and php-fpm. but it continues to report its not installed or enabled.

I am running the latest virtualmin on centos 7.

Does anyone have any idea how I can get this to work?