How to add an ending to the registration date of a wordpress user?

Question

WordPress

Good day, it became necessary to add a registration end date for users.
And I need advice, since I'm facing this for the first time.
User registration takes place through the admin panel and for a user of a certain role, you must specify the expiration date of his account, and upon expiration, the account must be deleted.
What is the best way to write this?
I know that there is a plugin that creates temporary accounts, but for this purpose it is not suitable.
Thanks in advance for your help, much appreciated!

Answer 1

When registering, you add to the user in the 'hex_date' field the timestamp of the expiration of the account.
Delete - so

$hex_time = get_user_meta($user_id, 'hex_date',true);
if( time() > $hex_time ) {
wp_delete_user( $user_id );
}