woocommerce_update_order │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_update_order', 'wp_kama_woocommerce_update_order_action', 10, 2 );

/**
 * Function for `woocommerce_update_order` action-hook.
 * 
 * @param  $order_id 
 * @param  $order    
 *
 * @return void
 */
function wp_kama_woocommerce_update_order_action( $order_id, $order ){

	// action...
}

$order_id

-

$order

-

Where the hook is called

do_action( 'woocommerce_update_order', $order->get_id(), $order ); // phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment

do_action( 'woocommerce_update_order', $order->get_id(), $order );

do_action( 'woocommerce_update_order', $order->get_id() );

do_action( 'woocommerce_update_order', $order->get_id() );

Where the hook is used in WooCommerce