Distance Calculator Sample"; echo DistanceCalc(30.524, -87.235, 34.097, -118.412, "M") . " Miles
"; echo DistanceCalc(30.524, -87.235, 34.097, -118.412, "K") . " Kilometers
"; echo DistanceCalc(30.524, -87.235, 34.097, -118.412, "N") . " Nautical Miles
"; ?>