WordPress at a glance
action is not described

update_site_option_(option) action-hook . WP 3.0.0

Fires after the value of a specific network option has been successfully updated.

The dynamic portion of the hook name, $option, refers to the option name.

Usage

add_action( 'update_site_option_(option)', 'action_function_name_1704', 10, 4 );
function action_function_name_1704( $option, $value, $old_value, $network_id ){
	// action...
}
$option(string)
Name of the network option.
$value(mixed)
Current value of the network option.
$old_value(mixed)
Old value of the network option.
$network_id(int)
ID of the network.

Notes

  • Since 2.9.0 As "update_site_option_{$key}"
  • Since 4.7.0 The $network_id parameter was added.

Where the hook is called

update_network_option()
update_site_option_(option)
wp-includes/option.php 1585
do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id );

Where the hook is used (in WP core)

wp-admin/includes/ms-admin-filters.php 23
add_action( 'update_site_option_admin_email', 'wp_network_admin_email_change_notification', 10, 4 );
wp-admin/includes/ms-admin-filters.php 44
add_action( 'update_site_option_new_admin_email', 'update_network_option_new_admin_email', 10, 2 );