WordPress at a glance
action is not described

archive_blog action-hook . WP 3.0.0

Fires when the 'archived' status is added to a site.

Usage

add_action( 'archive_blog', 'action_function_name_370' );
function action_function_name_370( $site_id ){
	// action...
}
$site_id(int)
Site ID.

Changelog

Since 3.0.0 Introduced.

Where the hook is called

wp_maybe_transition_site_statuses_on_update()
archive_blog
wp-includes/ms-site.php 1217
do_action( 'archive_blog', $site_id );

Where the hook is used (in WP core)

wp-includes/ms-default-filters.php 90
add_action( $action, 'wp_maybe_update_network_site_counts', 10, 0 );