WordPress at a glance
action is not described

update_site_option action-hook . WP 3.0.0

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


add_action( 'update_site_option', 'action_function_name_5169', 10, 4 );
function action_function_name_5169( $option, $value, $old_value, $network_id ){
	// action...
Name of the network option.
Current value of the network option.
Old value of the network option.
ID of the network.


Since 3.0.0 Introduced.
Since 4.7.0 The $network_id parameter was added.

Where the hook is called

wp-includes/option.php 1660
do_action( 'update_site_option', $option, $value, $old_value, $network_id );

Where the hook is used (in WP core)

Usage not found!