sms-plugin-order-details.php

$order = new WC_Order( $order_id );
    $order_meta = get_post_meta($order_id);
    $vendors = array();
    $items = $order->get_items();
    foreach ($items as $item) {
        $prodid = $item['product_id'];
        $vends = get_the_terms($prodid, 'dc_vendor_shop');
        foreach ($vends as $vend) {
            if (!in_array($vend, $vendors)) {
                array_push($vendors, $vend);
            }
        }
    }
    $vids = array();
    foreach ($vendors as $vend) {
        $terms = get_terms( 'dc_vendor_shop', array(
            'term_id' => $vend,
        ) );
        foreach ($terms as $term) {
            $vdetails = get_user_by('slug', $term->slug);
            $vid = $vdetails->ID;
            if (!in_array($vid, $vids)) {
                array_push($vids, $vid);
            }
        }
    }
    // Send order details to seller
    $buyer_firstname = $order->billing_first_name;
    $buyer_lastname = $order->billing_last_name;
    $buyer_email = $order->billing_email;
    $buyer_phone = $order->billing_phone;
    $ordertotal = $order->order_total;