list($minLongitude, $maxLongitude) = self::earthLongitudeRange($longitude, $latitude, $distance);
list($minLatitude, $maxLatitude) = self::earthLatitudeRange($longitude, $latitude, $distance);
// DONT consider NAN values (which is returned by rad2deg php function)
// for checking BETWEEN geo_code's criteria as it throws obvious 'NAN' field not found DB: Error
list($minLongitude, $maxLongitude) = self::earthLongitudeRange($longitude, $latitude, $distance);
list($minLatitude, $maxLatitude) = self::earthLatitudeRange($longitude, $latitude, $distance);
// DONT consider NAN values (which is returned by rad2deg php function)
// for checking BETWEEN geo_code's criteria as it throws obvious 'NAN' field not found DB: Error