float calculateDistance(
mixed $aLon, mixed $aLat, mixed $bLon, mixed $bLat, [mixed $unit = KILOMETERS])
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Given two sets of lat/lon pairs, calculate the distance between them
Distance defaults to being calculated in kilometers.
Parameters
| mixed |
$aLon |
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| mixed |
$aLat |
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| mixed |
$bLon |
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| mixed |
$bLat |
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| mixed |
$unit |
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