使用谷歌地图API获取两点之间的行驶距离

php

2022-08-30 11:49:47

我正在尝试使用Google Maps API获取两点之间的驾驶距离。现在，我有代码可以直接获得距离：

此函数获取 lat 和 lng：

function get_coordinates($city, $street, $province)
{
    $address = urlencode($city.','.$street.','.$province);
    $url = "http://maps.google.com/maps/api/geocode/json?address=$address&sensor=false&region=Poland";
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_PROXYPORT, 3128);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    $response = curl_exec($ch);
    curl_close($ch);
    $response_a = json_decode($response);
    $return = array('lat' => $response_a->results[0]->geometry->location->lat, 'long' => $long = $response_a->results[0]->geometry->location->lng);

    return $return;
}

此函数根据 lat & lng 计算两点之间的距离：

function getDistanceBetweenPoints($lat1, $lon1, $lat2, $lon2) {
    $theta = $lon1 - $lon2;
    $miles = (sin(deg2rad($lat1)) * sin(deg2rad($lat2))) + (cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta)));
    $miles = acos($miles);
    $miles = rad2deg($miles);
    $miles = $miles * 60 * 1.1515;
    $kilometers = $miles * 1.609344;
    return $kilometers;
}

此功能打印距离以公里为单位：

function get_distance($lat1, $lat2, $long1, $long2)
{
    /* These are two points in New York City */
    $point1 = array('lat' => $lat1, 'long' => $long1);
    $point2 = array('lat' => $lat2, 'long' => $long2);

    $distance = getDistanceBetweenPoints($point1['lat'], $point1['long'], $point2['lat'], $point2['long']);
    return $distance;
}

用法：

$coordinates1 = get_coordinates('Katowice', 'Korfantego', 'Katowicki');
$coordinates2 = get_coordinates('Tychy', 'Jana Pawła II', 'Tyski');

echo 'Distance: <b>'.round(get_distance($coordinates1['lat'], $coordinates2['lat'], $coordinates1['long'], $coordinates2['long']), 1).'</b> km';

但是这个代码得到直接的距离。我需要驾驶距离。如何使用谷歌地图API获得驾驶距离？

感谢您的帮助！

答案 1

好的，我找到了使用距离矩阵的解决方案：https://developers.google.com/maps/documentation/distancematrix/#DistanceMatrixRequests

此函数从城市，地址，省获取纬度和液化天然气：

function get_coordinates($city, $street, $province)
{
    $address = urlencode($city.','.$street.','.$province);
    $url = "http://maps.google.com/maps/api/geocode/json?address=$address&sensor=false&region=Poland";
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_PROXYPORT, 3128);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    $response = curl_exec($ch);
    curl_close($ch);
    $response_a = json_decode($response);
    $status = $response_a->status;

    if ( $status == 'ZERO_RESULTS' )
    {
        return FALSE;
    }
    else
    {
        $return = array('lat' => $response_a->results[0]->geometry->location->lat, 'long' => $long = $response_a->results[0]->geometry->location->lng);
        return $return;
    }
}

此功能计算行驶距离和行驶时间：

function GetDrivingDistance($lat1, $lat2, $long1, $long2)
{
    $url = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=".$lat1.",".$long1."&destinations=".$lat2.",".$long2."&mode=driving&language=pl-PL";
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_PROXYPORT, 3128);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    $response = curl_exec($ch);
    curl_close($ch);
    $response_a = json_decode($response, true);
    $dist = $response_a['rows'][0]['elements'][0]['distance']['text'];
    $time = $response_a['rows'][0]['elements'][0]['duration']['text'];

    return array('distance' => $dist, 'time' => $time);
}

用法：

$coordinates1 = get_coordinates('Tychy', 'Jana Pawła II', 'Śląskie');
$coordinates2 = get_coordinates('Lędziny', 'Lędzińska', 'Śląskie');
if ( !$coordinates1 || !$coordinates2 )
{
    echo 'Bad address.';
}
else
{
    $dist = GetDrivingDistance($coordinates1['lat'], $coordinates2['lat'], $coordinates1['long'], $coordinates2['long']);
    echo 'Distance: <b>'.$dist['distance'].'</b><br>Travel time duration: <b>'.$dist['time'].'</b>';
}

返回：

距离： 11，2 公里行程长度： 15 分钟

答案 2

您可以使用Google Distance Matrix API来执行此操作：

// $details = "http://maps.googleapis.com/maps/api/distancematrix/json?origins=Seattle&destinations=San+Francisco&mode=driving&sensor=false";

    //you can also pass latitude/longitude values in origins


   $details = "http://maps.googleapis.com/maps/api/distancematrix/json?origins=41.43206,-81.38992&destinations=San+Francisco&mode=driving&sensor=false";


    $json = file_get_contents($details);

    $details = json_decode($json, TRUE);

    echo "<pre>"; print_r($details); echo "</pre>";

这是Google Distance Matrix API的链接：- https://developers.google.com/maps/documentation/distancematrix/?csw=1