Revision: 33548
                            
                                                            
                                    
                                        
Initial Code
                                    
                                    
                                                            
                                    
                                        
Initial URL
                                    
                                    
                                
                                                            
                                    
                                        
Initial Description
                                    
                                    
                                
                                                            
                                    
                                        
Initial Title
                                    
                                    
                                                            
                                    
                                        
Initial Tags
                                    
                                    
                                
                                                            
                                    
                                        
Initial Language
                                    
                                    
                                                    
                        at October 10, 2010 04:13 by nikhilkumar80
                            
                            Initial Code
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);
  if ($unit == "K") {
    return ($miles * 1.609344);
  } else if ($unit == "N") {
      return ($miles * 0.8684);
    } else {
        return $miles;
      }
}
                                Initial URL
Initial Description
Initial Title
Calculate Distance
Initial Tags
Initial Language
PHP