11
08月
2015
37. 计算两个地图坐标之间的距离
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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' );
}
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语法:
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<?php
$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). '<br />' ;
}
?>
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