woocommerce_structured_data_order │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_structured_data_order', 'wp_kama_woocommerce_structured_data_order_filter', 10, 3 );

/**
 * Function for `woocommerce_structured_data_order` filter-hook.
 * 
 * @param  $markup        
 * @param  $sent_to_admin 
 * @param  $order         
 *
 * @return 
 */
function wp_kama_woocommerce_structured_data_order_filter( $markup, $sent_to_admin, $order ){

	// filter...
	return $markup;
}

$markup

-

$sent_to_admin

-

$order

-

Where the hook is called

$this->set_data( apply_filters( 'woocommerce_structured_data_order', $markup, $sent_to_admin, $order ), true );

Where the hook is used in WooCommerce