Josh Holat joshholat

Backend Developer. Python, Django, PHP, Go, Docker.

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joshholat / gist:6980569

Last active Dec 25, 2015

Calculating Distance Between Two Latitude and Longitude Points

View gist:6980569

      
        <?php
      
        function distance($lat1, $lon1, $lat2, $lon2, $unit)
      
        {
      
          $theta = $lon1 - $lon2;
      
          $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
      
          $dist = acos($dist);
      
          $dist = rad2deg($dist);
      
          $miles = $dist * 60 * 1.1515;
      
          $unit = strtoupper($unit);

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