Hy我試着讓距離超過100分。我使用的功能距離PHP做出的距離,但我不知道該如何從JSON這是我的碼距PHP如何從json距離?
<?php
function distance($lat1, $lon1, $lat2, $lon2, $unit) {
$theta = $lon1 - $lon2;
$dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
$dist = acos($dist);
$dist = rad2deg($dist);
$miles = $dist * 60 * 1.1515;
$unit = strtoupper($unit);
if ($unit == "K") {
return ($miles * 1.609344);
} else if ($unit == "N") {
return ($miles * 0.8684);
} else {
return $miles;
}
}
$r = distance(32.9697, -96.80322, 29.46786, -98.53506, "K") . " Kilometers<br>";
echo $r;
?>
我JSON例如像這樣
[{"latitude":"-7.285833","longitude":"112.725947"},
{"latitude":"-7.302902","longitude":"112.684648"},
{"latitude":"-7.332048","longitude":"112.669293"},
{"latitude":"-7.364344","longitude":"112.685177"},
{"latitude":"-7.384560","longitude":"112.717475"},
{"latitude":"-7.398474","longitude":"112.773600"},
{"latitude":"-7.417114","longitude":"112.729653"},
{"latitude":"-7.429452","longitude":"112.797426"},
{"latitude":"-7.444224","longitude":"112.787337"},
{"latitude":"-7.494794","longitude":"112.779152"}]
我不不知道如何與json數據保持距離,請幫我解決我的問題,謝謝。
也許你應該增加更多的細節。 您打算使用PHP解析JSON並將這些對象用作函數的輸入嗎? – gal242