do_action( 'register_new_user', int $user_id ) Fires after a new user registration has been recorded. ContentsParameters Source Related Used By Changelog User Contributed Notes Parameters $user_id (int) ID of the newly registered user. Top ↑Source File: wp-includes/user.php View on Trac Top ↑Related Top ↑Used By Used By Used By Description wp-includes/user.php: register_new_user() Handles registering a new user. Top ↑Changelog Changelog Version Description 4.4.0 Introduced. Top ↑User Contributed Notes You must log in before being able to contribute a note or feedback.