woocommerce / woocommerce-gateway-stripe

		}

		// Check if postal code is valid format.

		if ( ! empty( $required_fields['billing_postcode'] ) ) {

			$country = isset( $required_fields['billing_country'] ) ? $required_fields['billing_country'] : WC()->customer->get_billing_country();

			$postcode = wc_format_postcode( $required_fields['billing_postcode'], $country );

			if ( '' !== $required_fields['billing_postcode'] && ! WC_Validation::is_postcode( $postcode, $country ) ) {

				$errors->add( 'validation', __( 'Please enter a valid billing postcode / ZIP.', 'woocommerce-gateway-stripe' ) );

			}

		}

		if ( empty( $all_fields['woocommerce_checkout_update_totals'] ) && empty( $all_fields['terms'] ) && apply_filters( 'woocommerce_checkout_show_terms', wc_get_page_id( 'terms' ) > 0 ) ) {

			$errors->add( 'terms', __( 'You must accept our Terms & Conditions.', 'woocommerce-gateway-stripe' ) );

			$errors->add( 'terms', __( 'You must accept our Terms & Conditions.', 'woocommerce-gateway-stripe' ) );

		}

		if ( WC()->cart->needs_shipping() && $validate_shipping_fields ) {

			// Check if postal code is valid format.

			if ( ! empty( $required_fields['shipping_postcode'] ) ) {

				$country = isset( $required_fields['shipping_country'] ) ? $required_fields['shipping_country'] : WC()->customer->get_shipping_country();

				$postcode = wc_format_postcode( $required_fields['shipping_postcode'], $country );

				if ( '' !== $required_fields['shipping_postcode'] && ! WC_Validation::is_postcode( $postcode, $country ) ) {

					$errors->add( 'validation', __( 'Please enter a valid shipping postcode / ZIP.', 'woocommerce-gateway-stripe' ) );

				}

			}

		}

		if ( WC()->cart->needs_shipping() ) {

			$shipping_country = WC()->customer->get_shipping_country();