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- calculate distance
- 6371*acos(cos(LatitudeA)*cos(LatitudeB)*cos(longitudeB-longitudeA)+sin(LatitudeA)*sin(latitudeB))
- $longA = 2.3458*(M_PI/180); // M_PI is a php constant
- $latA = 48.8608*(M_PI/180);
- $longB = 5.0356*(M_PI/180);
- $latB = 47.3225*(M_PI/180);
- $subBA = bcsub ($longB, $longA, 20);
- $cosLatA = cos($latA);
- $cosLatB = cos($latB);
- $sinLatA = sin($latA);
- $sinLatB = sin($latB);
- $distance = 6371*acos($cosLatA*$cosLatB*cos($subBA)+$sinLatA*$sinLatB);
- echo $distance ;
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