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usainicola/gist:cee888a202d9f2e9a8692f7696225714

Created December 13, 2018 18:17
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distance
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gistfile1.txt
<?php
function distance($latitudeFrom, $longitudeFrom, $latitudeTo, $longitudeTo) {
$rad = M_PI / 180;
$theta = $longitudeFrom - $longitudeTo;
$dist = sin($latitudeFrom * $rad) * sin($latitudeTo * $rad) + cos($latitudeFrom * $rad) * cos($latitudeTo * $rad) * cos($theta * $rad);
return acos($dist) / $rad * 60 * 1.852;
}
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