API or script to change site PHP version

I looked through the API docs and do not see a feature to allow change of site PHP version via command line or call. Is there a way to accomplish this task without the need to login to the panel via browser or manually modifying configuration files?

This would be a great feature!! +1

Hello,

[h=4]CMD_API_ADDITIONAL_DOMAINS to include php selector information[/h]

Though this requires either implementing in a script using the login credentials, am I correct? What we are looking for here is something similar to cPanel's command line API call that can be ran as root.
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https://documentation.cpanel.net/display/DD/WHM+API+1+Functions+-+php_set_vhost_versions
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What we would like to be able to do is simply issue a command via shell to change PHP version of a domain/vhost while logged in as root (or DA user) without the need to pass login credentials or create session or url to make an http request.

Am I missing something here?

Yes, API requires admin's credentials at minimum.

For a CLI version you might check this one: https://github.com/poralix/directadmin-utils/blob/master/php/change_domain_phpver.sh written by me some time ago.

Either modify it to fit your needs, or test and post your comments and suggestions on how to improve the script.