Uncaught Error: Call to a member function get_shipping_packages()

I am trying to get the current shipping zone of the user but I am getting an error every time I am trying to get it

// The package. 

// Get cart shipping packages
$shipping_packages = $woocommerce->cart->get_shipping_packages();

// Get the WC_Shipping_Zones instance object for the first package
$shipping_zone = $woocommerce->wc_get_shipping_zone( reset( $shipping_packages ) );

$zone_id   = $shipping_zone->get_id(); // Get the zone ID
$zone_name = $shipping_zone->get_zone_name(); // Get the zone name

// Testing output
echo '<p>Zone id: ' . $zone_id . ' | Zone name: ' . $zone_name . '</p>';

Error info

There are 2 issues:

• $woocommerce global variable is not defined (and it's can be replaced by WC()),
• wc_get_shipping_zone() is not a Woocommerce method but a function.

Try the following instead (for plugins see below):

// Get cart shipping packages
$shipping_packages = WC()->cart->get_shipping_packages();

// Get the WC_Shipping_Zones instance object for the first package
$shipping_zone = wc_get_shipping_zone( reset( $shipping_packages ) );

$zone_id       = $shipping_zone->get_id(); // Get the zone ID
$zone_name     = $shipping_zone->get_zone_name(); // Get the zone name

// Testing output
echo '<p>Zone id: ' . $zone_id . ' | Zone name: ' . $zone_name . '</p>';

It should work

For plugins, try

global $woocommerce;

// Get cart shipping packages
$shipping_packages = $woocommerce->cart->get_shipping_packages();

// Get the WC_Shipping_Zones instance object for the first package
$shipping_zone = wc_get_shipping_zone( reset( $shipping_packages ) );

$zone_id       = $shipping_zone->get_id(); // Get the zone ID
$zone_name     = $shipping_zone->get_zone_name(); // Get the zone name