php - map 距离错误

Question

好吧，我想我只是因为我的大脑衰竭而把一切都搞砸了。

我遵循了 Google 的“phpsqlsearch_v3”示例:

• 导入sql文件
• 将查询从显示英里更改为公里

• 使用这个进行测试:

  phpsqlsearch_genxml.php?lat=37.315903&lng=-121.977928&radius=40
  

万物皆有魅力...

进入网站获取latlong，在数据库中添加和更改一些数据现在，我正在将 phpsqlsearch_genxml.php 更改为...

phpsqlsearch_genxml.php?lat=59.627847&lng=17.838589&radius=40

...没什么...但是，如果我将半径更改为 8000，它会起作用，但输入周围的距离将像 5665.231121242624km 但如果我翻转输入，因为我在地球的右侧眨眼 眨眼 到

phpsqlsearch_genxml.php?lat=17.838589&lng=59.627847&radius=100

它会给我一个更准确的结果，但是……结果应该更近，大约 1-2 公里……

建议现在做什么？

Answer 1

function getAddress($lat, $lng) {
    $use_curl = false;
        if ($use_curl) {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, "http://maps.googleapis.com/maps/api/geocode/json?latlng=" . $lat . "," . $lng . "&sensor=true");
            curl_setopt($ch, CURLOPT_HEADER, true);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
            curl_setopt($ch, CURLOPT_HTTPHEADER, Array (
            "Content-type: application/binary"
            ));
            curl_setopt($ch, CURLOPT_POST, 1);
            $response = curl_exec($ch);
            if (curl_errno($ch))
            return -1;
            $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
            $str = substr($response, $header_size);
            curl_close($ch);
            $data = json_decode($str, true);
            if (isset($data["results"]) && is_array($data["results"])) {
            $street = $data["results"][0]["formatted_address"];
            $ac = $data["results"][0]["address_components"];
            $len = count($ac);
            $i = 0;
            $city = "";
            while ($i<$len) {
            if (in_array("locality", $ac[$i]["types"])) $city = $ac[$i]["long_name"];
            else if (in_array("country", $ac[$i]["types"])) $city .= ",".$ac[$i]["short_name"];
            $i++;
            }
            $meta = array(
            "status"=>200,
            "message"=>"Succeed."
            );
            return array("meta"=>$meta, "response"=>array("address"=>$street, "city"=>$city));
            } else {
            $meta = array(
            "status"=>406,
            "message"=>"Address is not known."
            );
            return array("meta", $meta);
            }
            } else {
            $str = @file_get_contents("http://maps.googleapis.com/maps/api/geocode/json?latlng=" . $lat . "," . $lng . "&sensor=true");
            $data = json_decode($str, true);
            if (isset($data["results"]) && is_array($data["results"])) {
            $street = $data["results"][0]["formatted_address"];
            $ac = $data["results"][0]["address_components"];
            $len = count($ac);
            $i = 0;
            $city = "";
            while ($i<$len) {
            if (in_array("locality", $ac[$i]["types"])) $city = $ac[$i]["long_name"];
            else if (in_array("country", $ac[$i]["types"])) $city .= ",".$ac[$i]["short_name"];
            $i++;
            }
            $meta = array(
            "status"=>200,
            "message"=>"Succeed."
            );
            return array("meta"=>$meta, "response"=>array("address"=>$street, "city"=>$city));
            } else {
            $meta = array(
            "status"=>406,
            "message"=>"Address is not known."
            );
            return array("meta"=>$meta);
        }
    }
}