wpmu_new_user action-hook . WP 3.0.0

Fires immediately after a new user is created.

Usage

add_action( 'wpmu_new_user', 'action_function_name_2333' );
function action_function_name_2333( $user_id ){
	// action...
}

$user_id(int)

User ID.

Changelog

Where the hook is called

do_action( 'wpmu_new_user', $user_id );

Where in WP core the hook is used WordPress

add_action( 'wpmu_new_user', 'newuser_notify_siteadmin' );

add_action( $action, 'wp_maybe_update_network_user_counts', 10, 0 );