woocommerce_customer_taxable_address │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_customer_taxable_address', 'wp_kama_woocommerce_customer_taxable_address_filter' );

/**
 * Function for `woocommerce_customer_taxable_address` filter-hook.
 * 
 * @param  $array 
 *
 * @return 
 */
function wp_kama_woocommerce_customer_taxable_address_filter( $array ){

	// filter...
	return $array;
}

$array

-

Where the hook is called

return apply_filters( 'woocommerce_customer_taxable_address', array( $country, $state, $postcode, $city ) );

Where the hook is used in WooCommerce