从IP地址获取位置 [英] Getting the location from an IP address

问题描述

我想从其IP地址中检索访问者的城市，州和国家等信息，以便我可以根据其位置自定义我的网页。有没有一种好的可靠的方法来在PHP中做到这一点？我为客户端脚本使用JavaScript，服务器端脚本使用PHP，数据库使用MySQL。 您可以下载免费的GeoIP数据库并在本地查找IP地址，或者您可以使用第三方服务并执行远程查询。这是更简单的选项，因为它不需要设置，但确实会引入额外的延迟。

您可以使用的第三方服务是我的， http：// ipinfo。 IO 。他们提供主机名称，地理位置，网络所有者和其他信息，例如：

$ $ $ $ curl ipinfo.io/8.8.8.8
{
ip：8.8.8.8，
主机名：google-public-dns-a.google.com，
loc：37.385999999999996， -
org：AS15169 Google Inc.，
city：Mountain View，
region：CA，
country ：美国，
电话：650
}

PHP示例：

  $ ip = $ _SERVER ['REMOTE_ADDR']; 
 $ details = json_decode（file_get_contents（http://ipinfo.io/{$ip}/json））; 
 echo $ details-> city; //  - > Mountain View
  

您也可以在客户端使用它。以下是一个简单的jQuery示例：

$。get（https：// ipinfo.io/json，函数（响应）{$（＃ip）。html（IP：+ response.ip）; $（＃address）。html（Location：+ response.city +，+ response.region）; $（＃details）。html（JSON.stringify（response，null，4））;}，jsonp）;

< script src =https://ajax.googleapis.com/ajax/libs/jquery/1.11 .1 / jquery.min.js>< / script>< h3>客户端IP地理位置使用< a href =http://ipinfo.io> ipinfo.io< / a>< / h3>< hr />< div id =ip>< / div>< div id =address>< / div>< hr /> pre id =details>< / pre>

I want to retrieve information like the city, state, and country of a visitor from their IP address, so that I can customize my web page according to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database.

解决方案

You could download a free GeoIP database and lookup the IP address locally, or you could use a third party service and perform a remote lookup. This is the simpler option, as it requires no setup, but it does introduce additional latency.

One third party service you could use is mine, http://ipinfo.io. They provide hostname, geolocation, network owner and additional information, eg:

$ curl ipinfo.io/8.8.8.8
{
  "ip": "8.8.8.8",
  "hostname": "google-public-dns-a.google.com",
  "loc": "37.385999999999996,-122.0838",
  "org": "AS15169 Google Inc.",
  "city": "Mountain View",
  "region": "CA",
  "country": "US",
  "phone": 650
}

Here's a PHP example:

$ip = $_SERVER['REMOTE_ADDR'];
$details = json_decode(file_get_contents("http://ipinfo.io/{$ip}/json"));
echo $details->city; // -> "Mountain View"

You can also use it client-side. Here's a simple jQuery example:

$.get("https://ipinfo.io/json", function (response) {
    $("#ip").html("IP: " + response.ip);
    $("#address").html("Location: " + response.city + ", " + response.region);
    $("#details").html(JSON.stringify(response, null, 4));
}, "jsonp");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<h3>Client side IP geolocation using <a href="http://ipinfo.io">ipinfo.io</a></h3>

<hr/>
<div id="ip"></div>
<div id="address"></div>
<hr/>Full response: <pre id="details"></pre>

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