您可以使用此代码片段。

 if($a = unserialize(file_get_contents('http://www.geoplugin.net/php.gp?ip='.$_SERVER['REMOTE_ADDR']))){
        $countrycode= $a['geoplugin_countryCode'];
        if ($countrycode=='UK' ){
            header( 'Location: https://www.example.co.uk/' ) ;exit;
        }
    }

您可以使用此代码片段。

 if($a = unserialize(file_get_contents('http://www.geoplugin.net/php.gp?ip='.$_SERVER['REMOTE_ADDR']))){
        $countrycode= $a['geoplugin_countryCode'];
        if ($countrycode=='UK' ){
            header( 'Location: https://www.example.co.uk/' ) ;exit;
        }
    }

将127.0.0.1替换为访问者IpAddress。

$country = geoip_country_name_by_name('127.0.0.1');

安装说明在这里，并阅读了解如何获取城市，州，国家，经度，纬度等…

使用以下服务

1) http://api.hostip.info/get_html.php?ip=12.215.42.19

2)

$json = file_get_contents('http://freegeoip.appspot.com/json/66.102.13.106');
$expression = json_decode($json);
print_r($expression);

3) http://ipinfodb.com/ip_location_api.php

以下是使用guzzle的更清晰的工作版本:

你可以使用curl而不是guzzle，这只是一个简单的get请求。

    function ip_info($ip = NULL, $purpose = "location", $deep_detect = TRUE) {
        $output = NULL;
        if (filter_var($ip, FILTER_VALIDATE_IP) === FALSE) {
            $ip = $_SERVER["REMOTE_ADDR"];
            if ($deep_detect) {
                if (filter_var(@$_SERVER['HTTP_X_FORWARDED_FOR'], FILTER_VALIDATE_IP))
                    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
                if (filter_var(@$_SERVER['HTTP_CLIENT_IP'], FILTER_VALIDATE_IP))
                    $ip = $_SERVER['HTTP_CLIENT_IP'];
            }
        }
        $purpose    = str_replace(array("name", "\n", "\t", " ", "-", "_"), NULL, strtolower(trim($purpose)));
        $support    = array("country", "countrycode", "state", "region", "city", "location", "address");
        $continents = array(
            "AF" => "Africa",
            "AN" => "Antarctica",
            "AS" => "Asia",
            "EU" => "Europe",
            "OC" => "Australia (Oceania)",
            "NA" => "North America",
            "SA" => "South America"
        );
        if (filter_var($ip, FILTER_VALIDATE_IP) && in_array($purpose, $support, true)) {
            $client = New \GuzzleHttp\Client();
            $ipdat = json_decode($client->request('GET','http://www.geoplugin.net/json.gp',$params = [
                'query' => [
                    'ip' => $ip,
                ]
            ])->getBody()->getContents(),true);
            if (strlen(trim($ipdat['geoplugin_countryCode'])) === 2) {
                switch ($purpose) {
                    case "location":
                        $output = array(
                            "city"           => $ipdat['geoplugin_city'],
                            "state"          => $ipdat['geoplugin_regionName'],
                            "country"        => $ipdat['geoplugin_countryName'],
                            "country_code"   => $ipdat['geoplugin_countryCode'],
                            "continent"      => $continents[strtoupper($ipdat['geoplugin_continentCode'])],
                            "continent_code" => $ipdat['geoplugin_continentCode']
                        );
                        break;
                    case "address":
                        $address = array($ipdat['geoplugin_countryName']);
                        if (@strlen($ipdat['geoplugin_regionName']) >= 1)
                            $address[] = $ipdat['geoplugin_regionName'];
                        if (@strlen($ipdat['geoplugin_city']) >= 1)
                            $address[] = $ipdat['geoplugin_city'];
                        $output = implode(", ", array_reverse($address));
                        break;
                    case "city":
                        $output = $ipdat['geoplugin_city'];
                        break;
                    case "region":
                    case "state":
                        $output = $ipdat['geoplugin_regionName'];
                        break;
                    case "country":
                        $output = $ipdat['geoplugin_countryName'];
                        break;
                    case "countrycode":
                        $output = $ipdat['geoplugin_countryCode'];
                        break;
                }
            }
        }
        return $output;
    }

您可以使用http://ip-api.com上的web服务 在PHP代码中，执行如下操作:

<?php
$ip = $_REQUEST['REMOTE_ADDR']; // the IP address to query
$query = @unserialize(file_get_contents('http://ip-api.com/php/'.$ip));
if($query && $query['status'] == 'success') {
  echo 'Hello visitor from '.$query['country'].', '.$query['city'].'!';
} else {
  echo 'Unable to get location';
}
?>

查询有许多其他信息:

array (
  'status'      => 'success',
  'country'     => 'COUNTRY',
  'countryCode' => 'COUNTRY CODE',
  'region'      => 'REGION CODE',
  'regionName'  => 'REGION NAME',
  'city'        => 'CITY',
  'zip'         => ZIP CODE,
  'lat'         => LATITUDE,
  'lon'         => LONGITUDE,
  'timezone'    => 'TIME ZONE',
  'isp'         => 'ISP NAME',
  'org'         => 'ORGANIZATION NAME',
  'as'          => 'AS NUMBER / NAME',
  'query'       => 'IP ADDRESS USED FOR QUERY',
)