36 lines
937 B
PHP
36 lines
937 B
PHP
<?php
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class Geo
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{
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static function distance($latlng1, $latlng2)
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{
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// Convert degrees to radians.
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$lat1 = deg2rad($latlng1['lat']);
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$lng1 = deg2rad($latlng1['lng']);
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$lat2 = deg2rad($latlng2['lat']);
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$lng2 = deg2rad($latlng2['lng']);
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// Calculate delta longitude and latitude.
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$delta_lat = ($lat2 - $lat1);
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$delta_lng = ($lng2 - $lng1);
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$distance = (6378137 * acos(cos($lat1) * cos($lat2) * cos($lng1 - $lng2) + sin($lat1) * sin($lat2)));
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if (isset($latlng1['alt']) && isset($latlng2['alt']) && $latlng1['alt'] <> $latlng2['alt']) {
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// var_dump($distance, abs($latlng1['alt'] - $latlng2['alt']));
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$altDelta = abs($latlng1['alt'] - $latlng2['alt']);
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$distance = sqrt(pow($distance, 2) + pow($altDelta, 2));
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// var_dump($distance);die;
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}
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return $distance;
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}
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static function formatedDistance($distance)
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{
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return $distance > 1000 ? round($distance/1000, 2).'км' : round($distance).'м';
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}
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}
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