woocommerce_shipping_rate_id │ filter-hook │ WC 3.2.0

Filter the shipping rate ID.

Usage

add_filter( 'woocommerce_shipping_rate_id', 'wp_kama_woocommerce_shipping_rate_id_filter', 10, 2 );

/**
 * Function for `woocommerce_shipping_rate_id` filter-hook.
 * 
 * @param string           $id   The shipping rate ID.
 * @param WC_Shipping_Rate $that The shipping rate object.
 *
 * @return string
 */
function wp_kama_woocommerce_shipping_rate_id_filter( $id, $that ){

	// filter...
	return $id;
}

$id(string)

The shipping rate ID.

$that(WC_Shipping_Rate)

The shipping rate object.

Changelog

Where the hook is called

return apply_filters( 'woocommerce_shipping_rate_id', $this->data['id'], $this );

Where the hook is used in WooCommerce