以下是对PHP计算2点经纬度之间的距离代码进行了分析介绍
- function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {
- $theta = $longitude1 - $longitude2;
- $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));
- $miles = acos($miles);
- $miles = rad2deg($miles);
- $miles = $miles * 60 * 1.1515;
- $feet = $miles * 5280;
- $yards = $feet / 3;
- $kilometers = $miles * 1.609344;
- $meters = $kilometers * 1000;
- return compact('miles','feet','yards','kilometers','meters');
- }
-
- $point1 = array('lat' => 40.770623, 'long' => -73.964367);
- $point2 = array('lat' => 40.758224, 'long' => -73.917404);
- $distance = getDistanceBetweenPointsNew($point1['lat'], $point1['long'], $point2['lat'], $point2['long']);
- foreach ($distance as $unit => $value) {
- echo $unit.': '.number_format($value,4).'
';
- }
- ?>
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