WordPress at a glance
action is not described

wpmu_upgrade_site action-hook . WP MU

Fires after each site has been upgraded.

Usage

add_action( 'wpmu_upgrade_site', 'action_function_name_4037' );
function action_function_name_4037( $site_id ){
	// action...
}
$site_id(int)
The Site ID.

Notes

  • Since MU (3.0.0)

Where the hook is called

In file: /wp-admin/network/upgrade.php
wpmu_upgrade_site
wp-admin/network/upgrade.php 109
do_action( 'wpmu_upgrade_site', $site_id );

Where the hook is used (in WP core)

Does not used.