The `add_new_user_to_blog()` function in WordPress adds a newly-created user to the appropriate blog, which is specific to the WordPress Multisite feature
The `get_all_page_ids()` function retrieves a list of all page IDs present on a WordPress site and can be useful for displaying or manipulating page data
The `floated_admin_avatar()` function in WordPress displays user avatars in various areas of the admin interface, including user profiles and comment sections