Automattic / jetpack

		// Order items

		if ( $order->get_items() ) {

			foreach ( $order->get_items() as $item ) {

				$product = $order->get_product_from_item( $item );

				$product_sku_or_id = Jetpack_Google_Analytics_Utils::get_product_sku_or_id( $product );

				$item_details = array(

					'id' => $product_sku_or_id,

					'name' => $item['name'],

					'category' => Jetpack_Google_Analytics_Utils::get_product_categories_concatenated( $product ),

					'price' => $order->get_item_total( $item ),

					'quantity' => $item['qty'],

				);

				$command = "ga( 'ec:addProduct', " . wp_json_encode( $item_details ) . " );";

				array_push( $command_array, $command );

			}

		}

		// Order summary

		$universal_commands = array();

		$cart = WC()->cart->get_cart();

		foreach ( $cart as $cart_item_key => $cart_item ) {

			/**

			* This filter is already documented in woocommerce/templates/cart/cart.php

			*/

			$product = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );

			$product_sku_or_id = Jetpack_Google_Analytics_Utils::get_product_sku_or_id( $product );

			$item_details = array(

				'id' => $product_sku_or_id,

				'name' => $product->get_title(),

				'category' => Jetpack_Google_Analytics_Utils::get_product_categories_concatenated( $product ),

				'price' => $product->get_price(),

				'quantity' => $cart_item[ 'quantity' ]

			);

			array_push( $universal_commands, "ga( 'ec:addProduct', " . wp_json_encode( $item_details ) . " );" );

		}