original_string: public static function getRegionNames()
      {
          if (is_null(self::$regionNames)) {
              $GEOIP_REGION_NAME = array();
              require_once PIWIK_INCLUDE_PATH . '/libs/MaxMindGeoIP/geoipregionvars.php';
              self::$regionNames = $GEOIP_REGION_NAME;
          }
  
          return self::$regionNames;
      }
code: public static function getRegionNames()
      {
          if (is_null(self::$regionNames)) {
              $GEOIP_REGION_NAME = array();
              require_once PIWIK_INCLUDE_PATH . '/libs/MaxMindGeoIP/geoipregionvars.php';
              self::$regionNames = $GEOIP_REGION_NAME;
          }
  
          return self::$regionNames;
      }
code_tokens: public static function getRegionNames ( ) { if ( is_null ( self :: $ regionNames ) ) { $ GEOIP_REGION_NAME = array ( ) ; require_once PIWIK_INCLUDE_PATH . '/libs/MaxMindGeoIP/geoipregionvars.php' ; self :: $ regionNames = $ GEOIP_REGION_NAME ; } return self :: $ regionNames ; }
docstring: Returns an array of region names mapped by country code & region code.
  
  @return array
docstring_tokens: Returns an array of region names mapped by country code & region code .