Welcome @rubel1122 Happy you are here
First confirm which php you have default e.g. in ssh terminal
$ /usr/bin/php -v
If that php version meets minimum requirements then go with first option /usr/bin/php
You can install those extensions using [TUTORIAL] How to install any PHP modules using PEAR Package Manager
For curl go to https://SERVER_URL:8090/managephp/installExtensions and look for
