Add Media Category via PHP CODE

Hi all,
This plugin is really grates and helped me a lot!
I’ve done a custom function to list the medias category depending of the current logged user:

<?php function comm_list_usr(){
    $current_user = wp_get_current_user();
	echo '[mediacat cats='.$current_user->user_login.' orderby="date" order="DESC"]';
	} ?>

This function is executed in a single specific page.
Now i’ve to do that when one new user is registered it creates the category with same name of the user…

The question is:
Is there a function to create a new media category via PHP?

Thanks!

https://www.ads-software.com/plugins/media-category-library/