do_action( 'activate_blog', int $id ) Fires after a network site is activated. ContentsParameters Source Changelog User Contributed Notes Parameters $id (int) The ID of the activated site. Top ↑Source File: wp-admin/network/sites.php View on Trac Top ↑Changelog Changelog Version Description MU (3.0.0) Introduced. Top ↑User Contributed Notes You must log in before being able to contribute a note or feedback.