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php Programming Glossary: latitude2Mysql query, select nearest places by a given coordinates http://stackoverflow.com/questions/14254641/mysql-query-select-nearest-places-by-a-given-coordinates function getDistanceBetweenPointsNew latitude1 longitude1 latitude2 longitude2 unit 'Mi' theta longitude1 longitude2 distance sin.. longitude2 distance sin deg2rad latitude1 sin deg2rad latitude2 cos deg2rad latitude1 cos deg2rad latitude2 cos deg2rad theta.. sin deg2rad latitude2 cos deg2rad latitude1 cos deg2rad latitude2 cos deg2rad theta distance acos distance distance rad2deg distance..
PHP/MySQL: Select locations close to a given location from DB http://stackoverflow.com/questions/894713/php-mysql-select-locations-close-to-a-given-location-from-db TO RADIAN latitude1 lat1 180 pi longitude1 long1 180 pi latitude2 lat2 180 pi longitude2 long2 180 pi FORMULA e ARCCOS SIN Latitude1.. Longitude1 EARTH_RADIUS distance acos sin latitude1 sin latitude2 cos latitude1 cos latitude2 cos longitude2 longitude1 6371 return.. acos sin latitude1 sin latitude2 cos latitude1 cos latitude2 cos longitude2 longitude1 6371 return distance echo distance..
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