在Woocommerce电子邮件“Quantity”值中添加千位分隔符

<?php
/**
 * Email Order Items
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/emails/email-order-items.php.
 *
 * @package WooCommerce/Templates/Emails
 * @version 3.7.0
 */

if (!defined('ABSPATH')) {
    exit;
}

$text_align = is_rtl() ? 'right' : 'left';

foreach ($items as $item_id => $item) :
    $product = $item->get_product();
    $sku = '';
    if ($show_sku && $product && is_object($product) && $product->get_sku()) {
        $sku = ' (#' . $product->get_sku() . ')';
    }
    ?>
    <tr class="<?php echo esc_attr(apply_filters('woocommerce_order_item_class', 'order_item', $item, $order)); ?>">
        <td class="td" style="text-align:<?php echo esc_attr($text_align); ?>; vertical-align:middle; font-family: 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif; word-wrap:break-word;">
            <?php

            // Show title/image etc
            if ($show_image) {
                echo apply_filters('woocommerce_order_item_thumbnail', '<div style="margin-bottom: 5px"><img src="' . (isset($thumbnail) ? esc_url($thumbnail) : wc_placeholder_img_src()) . '" alt="' . esc_attr($product->get_name()) . '" height="' . esc_attr(woocommerce_email_order_item_thumbnail_size()) . '" width="' . esc_attr(woocommerce_email_order_item_thumbnail_size()) . '" style="vertical-align:middle; margin-' . (is_rtl() ? 'left' : 'right') . ': 10px;" /></div>', $item);
            }

            // Product name
            echo apply_filters('woocommerce_order_item_name', $item->get_name(), $item, false);

            // SKU
            echo apply_filters('woocommerce_order_item_sku', $sku, $item, $order);

            // allow other plugins to add additional product information here
            do_action('woocommerce_order_item_meta_start', $item_id, $item, $order, $plain_text);

            wc_display_item_meta($item);

            // allow other plugins to add additional product information here
            do_action('woocommerce_order_item_meta_end', $item_id, $item, $order, $plain_text);
            ?>
        </td>

        <td class="td" style="text-align:<?php echo esc_attr($text_align); ?>; vertical-align:middle; font-family: 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif;">
            <?php echo apply_filters('woocommerce_email_order_item_quantity', $item->get_quantity(), $item); ?>
        </td>

        <td class="td" style="text-align:<?php echo esc_attr($text_align); ?>; vertical-align:middle; font-family: 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif;">
            <?php echo wc_price($item->get_total(), array('currency' => $order->get_currency())); ?>
        </td>
    </tr>
<?php endforeach; ?>