woocommerce + hide shipping method for a city code example

Example 1: remove add to cart woocommerce button

function chiefthemes_remove_addcart() {
   $product = get_product();
   if ( has_term ( 'category-name', 'product_cat') ) {
       remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
       remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
       remove_action( 'woocommerce_simple_add_to_cart', 'woocommerce_simple_add_to_cart', 30 );
       remove_action( 'woocommerce_grouped_add_to_cart', 'woocommerce_grouped_add_to_cart', 30 );
       remove_action( 'woocommerce_variable_add_to_cart', 'woocommerce_variable_add_to_cart', 30 );
       remove_action( 'woocommerce_external_add_to_cart', 'woocommerce_external_add_to_cart', 30 );
   }
}
add_action( 'wp', 'chiefthemes_remove_addcart' );

Example 2: get current shipping method woocommerce

$rate_table = array();

$shipping_methods = WC()->shipping->get_shipping_methods();

foreach($shipping_methods as $shipping_method){
    $shipping_method->init();

    foreach($shipping_method->rates as $key=>$val)
        $rate_table[$key] = $val->label;
}

echo $rate_table[WC()->session->get( 'chosen_shipping_methods' )[0]];

Example 3: remove billing address for virtual product woocommerce

add_filter( 'woocommerce_checkout_fields' , 'bbloomer_simplify_checkout_virtual' );
 
function bbloomer_simplify_checkout_virtual( $fields ) {
    
   $only_virtual = true;
    
   foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
      // Check if there are non-virtual products
      if ( ! $cart_item['data']->is_virtual() ) $only_virtual = false;   
   }
     
    if( $only_virtual ) {
       unset($fields['billing']['billing_company']);
       unset($fields['billing']['billing_address_1']);
       unset($fields['billing']['billing_address_2']);
       unset($fields['billing']['billing_city']);
       unset($fields['billing']['billing_postcode']);
       unset($fields['billing']['billing_country']);
       unset($fields['billing']['billing_state']);
       //unset($fields['billing']['billing_phone']);
       add_filter( 'woocommerce_enable_order_notes_field', '__return_false' );
     }
     
     return $fields;
}