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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.


add_action( 'update_site_option_(option)', 'action_function_name_3942', 10, 4 );
function action_function_name_3942( $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 2.9.0 As "update_site_option_{$key}"
Since 4.7.0 The $network_id parameter was added.

Where the hook is called

wp-includes/option.php 1807
do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id );

Where in WP core the hook is used WordPress

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 );