使用Google Maps，PHP和MySQL从A点到B点的距离 [英] Distance from point A to B using Google Maps, PHP and MySQL

问题描述

任何人都可以请帮忙。我只需要一个简单的脚本。我有一个表单发布到另一个页面。两个表单域是：

fromaddress和toaddress

我需要的是一个脚本，它显示了距离在公里和使用谷歌地图的时间。我发现了几十个脚本，但我无法正常工作。

 < script type =text / javascriptsrc = //maps.googleapis.com/maps/api/js?key=AIzaSyDdDwV6_l5n2bS3gM6NBCla3RFLtIFc_HE&sensor=false\"></script><script type =text / javascript> 
 var directionDisplay; 
 var directionsService = new google.maps.DirectionsService（）; 
 var map; 
 
函数initialize（）{
 directionsDisplay = new google.maps.DirectionsRenderer（）; 
 var myOptions = {
 zoom：8，
 mapTypeId：google.maps.MapTypeId.ROADMAP，
} 
 map = new google.maps.Map（document。 getElementById（map_canvas），myOptions）; 
 directionsDisplay.setMap（map）; 
 
 var start =< ;? echo $ _POST [fromaddress];？>; 
 var end =< ;? echo $ _POST [toaddress];？>; 
 var request = {
 origin：start，
 destination：end，
 travelMode：google.maps.DirectionsTravelMode.DRIVING 
}; 
 directionsService.route（request，function（response，status）{
 if（status == google.maps.DirectionsStatus.OK）{
 directionsDisplay.setDirections（response）; 
 } 
}）; 
 
 
 $ b $（document）.ready（function（）{
 initialize（）; 
}）; 
< / script> 
  

但我如何显示距离和时间。最佳选择是将它的值设为php：

  $ distance = some-code; 
 $ time = some-code-too; 
  

非常感谢您的帮助。

解决方案

您需要为此使用不同的API。首先，不要使用JS而是使用PHP，这里是适合你的代码片段;）

  $ from = Więckowskiego72，Łódź; 
 $ to =Gazowa 1，Łódź; 
 
 $ from = urlencode（$ from）; 
 $ to = urlencode（$ to）; 
 
 $ data = file_get_contents（http://maps.googleapis.com/maps/api/distancematrix/json?origins=$from&destinations=$to&language=en-EN&sensor=假）; 
 $ data = json_decode（$ data）; 
 
 $ time = 0; 
 $ distance = 0; 
 
 foreach（$ data-> rows [0]  - >元素为$ road）{
 $ time + = $ road-> duration-> value; 
 $ distance + = $ road-> distance-> value; 
} 
 
 echoTo：。$ data-> destination_addresses [0]; 
回声< br />; 
 echoFrom：。$ data-> origin_addresses [0]; 
回声< br />; 
 echoTime：。$ time。seconds; 
回声< br />; 
 echoDistance：。$ distance。meters; 
  

输出：

 收件人：Gazowa 1，91-076波兰Łódź
来自：Więckowskiego72，波兰罗兹
时间：206秒
距离：1488米
  




Can anyone please help. I just need a simple script. I have a form posted to another page. two formfields are:

fromaddress and toaddress

The only thing I need is a script that shows me the distance in km and the time it takes using google maps. I have found dozens of scripts but I cannot get it working. The map is already there with this code which seems to work perfect.

<script type="text/javascript" src="//maps.googleapis.com/maps/api/js?key=AIzaSyDdDwV6_l5n2bS3gM6NBCla3RFLtIFc_HE&sensor=false"></script><script type="text/javascript">
    var directionDisplay;
    var directionsService = new google.maps.DirectionsService();
    var map;

    function initialize() {
        directionsDisplay = new google.maps.DirectionsRenderer();
        var myOptions = {
            zoom: 8,
            mapTypeId: google.maps.MapTypeId.ROADMAP,
        }
        map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
        directionsDisplay.setMap(map);

        var start = "<? echo $_POST[fromaddress]; ?>";
        var end = "<? echo $_POST[toaddress]; ?>";
        var request = {
            origin:start, 
            destination:end,
            travelMode: google.maps.DirectionsTravelMode.DRIVING
        };
        directionsService.route(request, function(response, status) {
            if (status == google.maps.DirectionsStatus.OK) {
                directionsDisplay.setDirections(response);
            }
        });

    }

    $(document).ready(function(){
        initialize();
    });        
</script>

But how do i display the distance and the time. Best option is to get it in a php value like:

$distance = some-code;
$time = some-code-too;

Thanks a lot for helping.

解决方案

You need to use different API for that. First of all, don't use JS but PHP, here's the code snippet that should work for you ;)

$from = "Więckowskiego 72, Łódź";
$to = "Gazowa 1, Łódź";

$from = urlencode($from);
$to = urlencode($to);

$data = file_get_contents("http://maps.googleapis.com/maps/api/distancematrix/json?origins=$from&destinations=$to&language=en-EN&sensor=false");
$data = json_decode($data);

$time = 0;
$distance = 0;

foreach($data->rows[0]->elements as $road) {
    $time += $road->duration->value;
    $distance += $road->distance->value;
}

echo "To: ".$data->destination_addresses[0];
echo "<br/>";
echo "From: ".$data->origin_addresses[0];
echo "<br/>";
echo "Time: ".$time." seconds";
echo "<br/>";
echo "Distance: ".$distance." meters";

Output:

To: Gazowa 1, 91-076 Łódź, Poland
From: Więckowskiego 72, Łódź, Poland
Time: 206 seconds
Distance: 1488 meters

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