WC_Abstract_Legacy_Order::__get PHP Method

    public function __get($key)
    {
        wc_doing_it_wrong($key, 'Order properties should not be accessed directly.', '2.7');
        if ('completed_date' === $key) {
            return $this->get_date_completed();
        } elseif ('paid_date' === $key) {
            return $this->get_date_paid();
        } elseif ('modified_date' === $key) {
            return $this->get_date_modified();
        } elseif ('order_date' === $key) {
            return $this->get_date_created();
        } elseif ('id' === $key) {
            return $this->get_id();
        } elseif ('post' === $key) {
            return get_post($this->get_id());
        } elseif ('status' === $key || 'post_status' === $key) {
            return 'wc-' . $this->get_status();
        } elseif ('customer_message' === $key || 'customer_note' === $key) {
            return $this->get_customer_note();
        } elseif (in_array($key, array('user_id', 'customer_user'))) {
            return $this->get_customer_id();
        } elseif ('tax_display_cart' === $key) {
            return get_option('woocommerce_tax_display_cart');
        } elseif ('display_totals_ex_tax' === $key) {
            return 'excl' === get_option('woocommerce_tax_display_cart');
        } elseif ('display_cart_ex_tax' === $key) {
            return 'excl' === get_option('woocommerce_tax_display_cart');
        } elseif ('cart_discount' === $key) {
            return $this->get_discount();
        } elseif ('cart_discount_tax' === $key) {
            return $this->get_discount_tax();
        } elseif ('order_tax' === $key) {
            return $this->get_cart_tax();
        } elseif ('order_shipping_tax' === $key) {
            return $this->get_shipping_tax();
        } elseif ('order_shipping' === $key) {
            return $this->get_shipping_total();
        } elseif ('order_total' === $key) {
            return $this->get_total();
        } elseif ('order_type' === $key) {
            return $this->get_type();
        } elseif ('order_currency' === $key) {
            return $this->get_currency();
        } elseif ('order_version' === $key) {
            return $this->get_version();
        } elseif (is_callable(array($this, "get_{$key}"))) {
            return $this->{"get_{$key}"}();
        } else {
            return get_post_meta($this->get_id(), '_' . $key, true);
        }
    }