Wordpress install script doesn't check for all required php modules

the wordpress install script only checks for 2 php modules, when in fact many are required. After a clean minimal install of Centos 8, then virtualmin, if I run the wordpress install script for a virtual server, the script will complete successfully but wordpress will not run, it's missing the php-json module specifically. Once installed that gets past the basic wordpress setup. The install script should check for the existence of additional modules wordpress requires.