Display the discounted subtotal after discount on pdf invoice in Woocommerce - php

Question

I want to display the cost of the product after a discount coupon on the invoice.
I have the following code, but it displays only base price, not the cost after coupon code:
add_filter( 'wpo_wcpdf_woocommerce_totals', 'wpo_wcpdf_woocommerce_totals_custom', 10, 2 );
function wpo_wcpdf_woocommerce_totals_custom( $totals, $order ) {
$totals = array(
'subtotal' => array(
'label' => __('Subtotal', 'wpo_wcpdf'),
'value' => $order->get_subtotal_to_display(),
),
);
return $totals;
}
I tred to change $totals to $discount, but it didn't work.

Answer 1

Your actual code is just removing all totals, displaying the subtotal only. Please try the following hooked function, that will display the discounted subtotal after the discount amount:
add_filter( 'wpo_wcpdf_woocommerce_totals', 'add_discounted_subtotal_to_pdf_invoices', 10, 2 );
function add_discounted_subtotal_to_pdf_invoices( $totals, $order ) {
// Get 'subtotal' raw amount value
$subtotal = strip_tags($totals['cart_subtotal']['value']);
$subtotal = (float) preg_replace('/[^0-9.]+/', '', $subtotal);
// Get 'discount' raw amount value
$discount = strip_tags($totals['discount']['value']);
$discount = (float) preg_replace('/[^0-9.]+/', '', $discount);
$new_totals = array();
// Loop through totals lines
foreach( $totals as $key => $values ){
$new_totals[$key] = $totals[$key];
// Inset new calculated 'Subtotal discounted' after total discount
if( $key == 'discount' && $discount != 0 && !empty($discount) ){
$new_totals['subtotal_discounted'] = array(
'label' => __('Subtotal discounted', 'wpo_wcpdf'),
'value' => wc_price($subtotal - $discount)
);
}
}
return $new_totals;
}
Code goes in function.php file of your active child theme (or theme).
Tested and works. It should work for you too.