Woocommerce: get total number of items in order

Question

This seems so simple, but it was late and I might have been over-complicating things!

I'm currently using the woocommerce_thankyou hook in the WP functions file to compile some data and send it to a third party API. So far, so easy, using standard $order and $order_meta values. But I need to get the total number of items in an order, and I can't see where to get it.

So if someone orders 2 green widgets and 3 blue widgets, I need to get 5 from somewhere.

Am I missing something obvious? :-)

Answer 1

Counting order items can be 2 different things:

1. Total items count:

   // Get an instance of the WC_Order Object $order = wc_get_order( $order_id );

   $items_count = count( $order->get_items() );

   // Testing output echo $items_count;

2. The total items quantity count:

   // Get an instance of the WC_Order Object $order = wc_get_order( $order_id );

   $total_quantity = 0; // Initializing

   // Loop through order items foreach ( $order->get_items() as $item ) { $total_quantity += $item->get_quantity(); }

   // Testing output echo $total_quantity;

Or you can use the WC_Order get_item_count() method that do the same (see its source code):

// Get an instance of the WC_Order Object
$order = wc_get_order( $order_id );

$total_quantity = $order->get_item_count();