Multiple email addresses

<?php
defined('_JEXEC') or die('Restricted access');

class plgHikashopExtra_recipients extends JPlugin {

    public function onBeforeMailSend(&$mail, &$mailer) {

        // Only act on order creation notifications. This skips status-change
        // emails, account-creation emails, password resets, etc.
        if (empty($mail->mail_name)) return;
        if (!in_array($mail->mail_name, array(
                'order_creation_notification',
                'order_admin_notification'))) {
            return;
        }

        // The order object is in $mail->data for order-related emails.
        $order = isset($mail->data) ? $mail->data : null;
        if (empty($order) || empty($order->shipping_address)) return;

        // Match on the shipping address. address_state usually holds the
        // state name or code, but you can also test address_city or
        // address_post_code if your "location" lives there.
        $state = isset($order->shipping_address->address_state)
            ? trim($order->shipping_address->address_state) : '';
        $city  = isset($order->shipping_address->address_city)
            ? trim($order->shipping_address->address_city) : '';

        $locations = array('Essex', 'Norfolk');

        $match = false;
        foreach ($locations as $loc) {
            if (strcasecmp($state, $loc) === 0 ||
                strcasecmp($city,  $loc) === 0) {
                $match = true;
                break;
            }
        }
        if (!$match) return;

        // Add the extra recipient. Replace with the Newport News address.
        // Use addBCC if you don't want the customer to see it in the
        // headers; use addCC if you do.
        $mailer->addBCC('newport.news@example.com', 'Newport News');
    }
}