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[英]Javascript translation for PHP code for sending UTM to iFrame
[英]Javascript to PHP Code translation help me?
您好,以下javascript代碼的php等價物是什么?
function arePointsNear(checkPoint, centerPoint, km) {
var ky = 40000 / 360;
var kx = Math.cos(Math.PI * centerPoint.lat / 180.0) * ky;
var dx = Math.abs(centerPoint.lng - checkPoint.lng) * kx;
var dy = Math.abs(centerPoint.lat - checkPoint.lat) * ky;
return Math.sqrt(dx * dx + dy * dy) <= km;
}
var vasteras = { lat: 41.235188, lng: 28.495035 };
var stockholm = { lat: 41.09774752058191, lng: 29.080487759810946 };
var n = arePointsNear(vasteras, stockholm, 49);
console.log(n);
function arePointsNear($checkPoint, $centerPoint, $km) {
$ky = 40000 / 360;
$kx = cos(pi() * $centerPoint['lat'] / 180.0) * $ky;
$dx = abs($centerPoint['lng'] - $checkPoint['lng']) * $kx;
$dy = abs($centerPoint['lat'] - $checkPoint['lat']) * $ky;
return sqrt($dx * $dx + $dy * $dy) <= $km;
}
$vasteras = ['lat' => 41.235188, 'lng' => 28.495035];
$stockholm = ['lat' => 41.09774752058191, 'lng' => 29.080487759810946];
$n = arePointsNear($vasteras, $stockholm, 49);
var_dump($n);
但是最好使用像https://github.com/mjaschen/phpgeo這樣的專用解決方案。
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