Python/PHP：免费IP归属地查询接口和通过ip获取大致位置信息

GET http://ip.taobao.com/outGetIpInfo?ip=221.218.209.125&accessKey=alibaba-inc
{
    data: {
        area: "",
        country: "中国",
        isp_id: "100026",
        queryIp: "221.218.209.125",
        city: "北京",
        ip: "221.218.209.125",
        isp: "联通",
        county: "",
        region_id: "110000",
        area_id: "",
        county_id: null,
        region: "北京",
        country_id: "CN",
        city_id: "110100"
    },
    msg: "query success",
    code: 0
}

GET http://ip-api.com/json/221.218.209.125?lang=zh-CN
{
    status: "success",
    country: "中国",
    countryCode: "CN",
    region: "BJ",
    regionName: "北京市",
    city: "北京",
    zip: "",
    lat: 39.9285,
    lon: 116.385,
    timezone: "Asia/Shanghai",
    isp: "China Unicom Beijing Province Network",
    org: "",
    as: "AS4808 China Unicom Beijing Province Network",
    query: "221.218.209.125"
}

<?php
namespace app\service;
use app\common\AppException;
use Requests;
class IpService
{
    public static function getIpInfo($ip)
    {
        $base_url = 'http://whois.pconline.com.cn/ipJson.jsp';
        $params = [
            'ip'   => $ip,
            // 注意，此处不能写boolean值，需要给string
            'json' => 'true'
        ];
        $url = $base_url . '?' . http_build_query($params);
        $response = Requests::get($url);
        if ($response->success) {
            // 编码转换处理，并移除字符串两边的空白
            $body=iconv("GBK", "UTF-8", trim($response->body)）;
            $data = json_decode($body, true);
            // 优先取区县码
            $code = $data['regionCode'];
            // 其次取城市码
            if (!self::isRegionCode($code)) {
                $code = $data['cityCode'];
            }
            //再次取省份码
            if (!self::isRegionCode($code)) {
                $code = $data['proCode'];
            }
            return [
                'ip'   => $data['ip'],
                'code' => $code
            ];
            // 此处仅返回区位码即可
            return [
                'ip'   => $data['ip'],
                'code' => $data['regionCode'],
            ];
        } else {
            throw new AppException('ip信息获取失败');
        }
    }
    public static function isRegionCode($code)
    {
        if (empty($code) || count($code) != 6) {
            return false;
        } else {
            return true;
        }
    }
}

<?php
namespace app\common;
use Exception;
/**
 * 自定义的业务异常
 * Class AppException
 * @package app\common
 */
class AppException extends Exception
{
}