PHP:谷歌地图2个地址之间的距离 - PHP: Distance between 2 addresses with Google Maps?

我正在尝试使用以下 PHP 脚本通过谷歌地图 API 获取 2 个位置之间的距离，该脚本显然有效（他们的托管测试 url 有效，在下面添加），但是当我使用他们在我自己的服务器上提供的代码时，它似乎什么也没做......顺便说一下，PHP 运行良好，它似乎没有做任何有趣的事情，需要我在 ini 文件中打开一些东西。

我不确定问题是什么...整天都在这边。

有什么想法吗？也许这是我的.ini？

我

不确定我在这里错过了什么。我使用的是共享主机，但这应该不会有什么区别。从技术上讲，它应该按原样工作，无论如何这就是我在这里的原因 - 我需要一些洞察力。

带有源代码的网站：http://www.codexworld.com/distance-between-two-addresses-google-maps-api-php/#comment-24117

他们的现场演示：http://demos.codexworld.com/distance-between-two-addresses-google-maps-api-php/

我的完整测试代码：

<?php
/**
*
* Author: CodexWorld
* Function Name: getDistance()
* $addressFrom => From address.
* $addressTo => To address.
* $unit => Unit type.
*
**/
    function getDistance($addressFrom, $addressTo, $unit){
        //Change address format
        $formattedAddrFrom = str_replace(' ','+',$addressFrom);
        $formattedAddrTo = str_replace(' ','+',$addressTo);
        //Send request and receive json data
        $geocodeFrom = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$formattedAddrFrom.'&sensor=false');
        $outputFrom = json_decode($geocodeFrom);
        $geocodeTo = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$formattedAddrTo.'&sensor=false');
        $outputTo = json_decode($geocodeTo);
        //Get latitude and longitude from geo data
        $latitudeFrom = $outputFrom->results[0]->geometry->location->lat;
        $longitudeFrom = $outputFrom->results[0]->geometry->location->lng;
        $latitudeTo = $outputTo->results[0]->geometry->location->lat;
        $longitudeTo = $outputTo->results[0]->geometry->location->lng;
        //Calculate distance from latitude and longitude
        $theta = $longitudeFrom - $longitudeTo;
        $dist = sin(deg2rad($latitudeFrom)) * sin(deg2rad($latitudeTo)) +  cos(deg2rad($latitudeFrom)) * cos(deg2rad($latitudeTo)) * cos(deg2rad($theta));
        $dist = acos($dist);
        $dist = rad2deg($dist);
        $miles = $dist * 60 * 1.1515;
        $unit = strtoupper($unit);
        if ($unit == "K") {
            return ($miles * 1.609344).' km';
        } else if ($unit == "N") {
            return ($miles * 0.8684).' nm';
        } else {
            return $miles.' mi';
        }
    }
    if (!empty($_POST['addrFrom']) && !empty($_POST['addrTo'])) { 
        $addressFrom = htmlspecialchars($_POST['addrFrom']);
        $addressTo = htmlspecialchars($_POST['addrTo']);
        $distance = getDistance($addressFrom, $addressTo, "K");
        $success = true;
    }
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
    <form method="post">
        <p class="distance"><span>Distance:<?php if ($success == true) { echo ' ' . $distance; } ?></span> </p>
        <p><label>Address From</label><input type="text" name="addrFrom" value=""></p>
        <p><label>Address To</label><input type="text" name="addrTo" value=""></p>
        <p><input type="submit" name="submit" value="Calculate Distance"></p>
    </form>
</body>
</html>

试试这个 - 稍微修改了你的做法..：

<?php
/**
* Author: CodexWorld
* Function Name: getDistance()
* $addressFrom => From address.
* $addressTo => To address.
* $unit => Unit type.
*
**/
    function getDistance($addressFrom, $addressTo, $unit){
        //Change address format
        $formattedAddrFrom = str_replace(' ','+',$addressFrom);
        $formattedAddrTo = str_replace(' ','+',$addressTo);
        //Send request and receive json data
        $geocodeFrom = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$formattedAddrFrom.'&sensor=false');
        $outputFrom = json_decode($geocodeFrom);
        $geocodeTo = file_get_contents('http://maps.google.com/maps/api/geocode/json?address='.$formattedAddrTo.'&sensor=false');
        $outputTo = json_decode($geocodeTo);
        //Get latitude and longitude from geo data
        $latitudeFrom = $outputFrom->results[0]->geometry->location->lat;
        $longitudeFrom = $outputFrom->results[0]->geometry->location->lng;
        $latitudeTo = $outputTo->results[0]->geometry->location->lat;
        $longitudeTo = $outputTo->results[0]->geometry->location->lng;
        //Calculate distance from latitude and longitude
        $theta = $longitudeFrom - $longitudeTo;
        $dist = sin(deg2rad($latitudeFrom)) * sin(deg2rad($latitudeTo)) +  cos(deg2rad($latitudeFrom)) * cos(deg2rad($latitudeTo)) * cos(deg2rad($theta));
        $dist = acos($dist);
        $dist = rad2deg($dist);
        $miles = $dist * 60 * 1.1515;
        $unit = strtoupper($unit);
        if ($unit == "K") {
            return ($miles * 1.609344).' km';
        } else if ($unit == "N") {
            return ($miles * 0.8684).' nm';
        } else {
            return $miles.' mi';
        }
    }
    if (isset($_POST['submit'])) {
        $addressFrom = htmlspecialchars($_POST['addrFrom']);
        $addressTo = htmlspecialchars($_POST['addrTo']);
        $distance = getDistance($addressFrom, $addressTo, "K");
        echo $distance;    
    }
?>
<!DOCTYPE html>
<html>
<head></head>
<body>
    <form method="post">
        <p><label>Address From</label><input type="text" name="addrFrom" value=""></p>
        <p><label>Address To</label><input type="text" name="addrTo" value=""></p>
        <p><input type="submit" name="submit" value="Calculate Distance"></p>
    </form>
</body>
</html>