Sort by SKU

Hello Metbar,
You can do this by adding the following code to your themes functions.php:

add_filter( 'wpo_wcpdf_order_items_data', 'wpo_wcpdf_sort_items_by_sku', 10, 2 );
function wpo_wcpdf_sort_items_by_sku ( $items, $order ) {
	usort($items, 'wpo_wcpdf_sort_by_sku');
	return $items;
}

function wpo_wcpdf_sort_by_sku($a, $b) {
	if ($a['sku']==$b['sku']) return 0;
	return ($a['sku']<$b['sku'])?-1:1;
}

Hope that helps!
Ewout

Hi Ewout.

Thank you for your reply. I get this when I enter the code in functions.php:

Fatal error: Call to undefined method DOMText::getAttribute() in /home/danoptik/public_html/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/lib/dompdf/include/cellmap.cls.php on line 437

Hi Metbar,
Can you enable output to HTML (via the Status tab) to see if any errors are displayed?

Ewout