通过经纬度获取所属城市信息-php

测试经纬度信息，37.863036,113.598909。通过地图查询，所在城市为：阳泉。

<?php
class test{
public static $test_key = 'dfgfdgfh3c8ttrr1774gfdgfdgfd9rgqw1'; //这里是申请的百度appkey
$url = 'http://api.map.baidu.com/geocoder/v2/';
//37.863036
$longitude = number_format(doubleval($longitude), );
//113.598909
$latitude = number_format(doubleval($latitude), );
$gps = $latitude . ',' . $longitude;
 $params = array(
     'location' => $gps,
      'pois' => ,
  );
$info = test2::get_contents($url, $params);
print_r($info);
}
class test2{

private static function get_contents($url, $param)
    {
        $baidu_key = test::test_key ;
        $param['ak'] = $baidu_key;
        $param['output'] = 'json';
        $url = $url . '?' . http_build_query($param, '', '&');
//echo $url;
        $retry = ;
        $result = array();

        while ($retry > ) {
            $result = json_decode(self::curl_get($url), true);

            if (!empty($result) && isset($result['status']) && $result['status'] == ) {
                return $result;
            }
            if (!empty($result) && isset($result['status'])) {
                $status = $result['status'];
            } else {
                $status = ' http_error:';
            }
            EdjLog::info("baidu_response retry status is" . $status.'params'.json_encode($param));
            $retry--;
        }
        EdjLog::warning('request to baidu lbs api failed after retries');

        return $result;
    }

private static function curl_get($url, $milliseconds = )
    {
        $start_time = microtime(true);

        $ch = curl_init();
        //这个参数很重要，设置这个才可以支持毫秒级的超时设置
        curl_setopt($ch, CURLOPT_NOSIGNAL, );
        curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
        curl_setopt($ch, CURLOPT_USERAGENT, self::$useragent);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_FAILONERROR, );
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, self::$connecttimeout);
        curl_setopt($ch, CURLOPT_TIMEOUT_MS, $milliseconds);

        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_URL, $url);
        $response = curl_exec($ch);
        $http_error_code = curl_errno($ch);
        curl_close($ch);

        EdjLog::info("request to baidu lbs api, url is $url, cost time:" . (microtime(true) - $start_time));
        EdjLog::info("baidu http_error:$http_error_code response is " . str_replace(PHP_EOL, '', $response));
        return $response;
    }

结果：

Array
(
    [status] =>
    [result] => Array
        (
            [location] => Array
                (
                    [lng] => 113.598909
                    [lat] => 37.863036027778
                )

            [formatted_address] => 山西省阳泉市城区德胜街130号
            [business] =>
            [addressComponent] => Array
                (
                    [country] => 中国
                    [country_code] =>
                    [country_code_iso] => CHN
                    [country_code_iso2] => CN
                    [province] => 山西省
                    [city] => 阳泉市
                    [city_level] =>
                    [district] => 城区
                    [town] =>
                    [adcode] =>
                    [street] => 德胜街
                    [street_number] => 130号
                    [direction] => 北
                    [distance] =>
                )

            [pois] => Array
                (
                )

            [roads] => Array
                (
                )

            [poiRegions] => Array
                (
                    [] => Array
                        (
                            [direction_desc] => 内
                            [name] => 阳泉站
                            [tag] => 交通设施;火车站
                            [uid] => a2ef2cba1b2e6961ab0dd8da
                            [distance] =>
                        )

                )

            [sematic_description] => 阳泉站内
            [cityCode] =>
        )

)