countries->get_states( $country ) ) : []; } /** * Validate provided state against a countries list of defined states. * * If there are no defined states for a country, any given state is valid. * * @param string $state State name or code (sanitized). * @param string $country Country code. * @return boolean Valid or not valid. */ public function validate_state( $state, $country ) { $states = $this->get_states_for_country( $country ); if ( count( $states ) && ! in_array( \wc_strtoupper( $state ), array_map( '\wc_strtoupper', array_keys( $states ) ), true ) ) { return false; } return true; } /** * Format a state based on the country. If country has defined states, will return a valid upper case state code. * * @param string $state State name or code (sanitized). * @param string $country Country code. * @return string */ public function format_state( $state, $country ) { $states