通过GeoIP获取ip所属地 (国家，城市，时区，邮编，经纬度等)

来源： http://www.phpandstuff.com/articles/geoip-country-lookup-with-php

GeoIP + PHP

<?php//计时开始function utime() {$time = explode( " ", microtime() );$usec = (double)$time[0];$sec = (double)$time[1];return $usec + $sec;}$startTimes = utime();// include the php script// wget -c http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz// gunzip GeoIP.dat.gzinclude("geoip.inc");// open the geoip database$gi = geoip_open("GeoIP.dat",GEOIP_STANDARD);// 获取国家代码$country_code = geoip_country_code_by_addr($gi, $_SERVER['REMOTE_ADDR']);echo "Your country code is: <strong>$country_code</strong> <br />";// 获取国家名称$country_name = geoip_country_name_by_addr($gi, $_SERVER['REMOTE_ADDR']);echo "Your country name is: <strong>$country_name</strong> <br />";// close the databasegeoip_close($gi);//运行结束时间$endTimes = utime();$runTimes = sprintf( '%0.4f', ( $endTimes - $startTimes ) );echo "Processed in " . $runTimes . "second.";
?>

注：在本地测试的话因为$_SERVER['REMOTE_ADDR']和$_SERVER['REMOTE_ADDR']可能是127.0.0.1，所以输出的内容为空。可以自己带入IP测试

或者使用某网站的API

API 1.

1. 返回文字

http://api.hostip.info/get_html.php?ip=12.215.42.19&position=true

2. 返回图片

<IMG SRC="http://api.hostip.info/flag.php?ip=12.215.42.19" ALT="IP Address Lookup">

API 2. （需要申请api key ，免费的，类似google）

城市：

http://api.ipinfodb.com/v3/ip-city/?key=<your_api_key>&ip=74.125.45.100

国家（更快）：

http://api.ipinfodb.com/v3/ip-country/?key=<your_api_key>&ip=74.125.45.100

Parameter	Required	Default	Value
key	Yes	<empty>	API key provided with your free account.
ip	No	Client IP	IP address
format	No	raw	raw, xml, json
callback	No	<empty>	Required when using json callback.

Please use the appropriate API for your needs. You can help us keep the load low on our servers by making sure that :

If you only need the country name, avoid using the city precision API.
If you track your visitors, avoid querying our API for all your page views (you can store the geolocation in a cookie, see below for an example)

API	Precision	Timezone	Domains lookups
ip-city	City	Yes	Yes
ip-country	Country	No	Yes

Please use the appropriate API for your needs. You can help us keep the load low on our servers by making sure that :

If you only need the country name, avoid using the city precision API.
If you track your visitors, avoid querying our API for all your page views (you can store the geolocation in a cookie, see below for an example)

使用类：

<?php
final class ip2location_lite{protected $errors = array();protected $service = 'api.ipinfodb.com';protected $version = 'v3';protected $apiKey = '';public function __construct(){}public function __destruct(){}public function setKey($key){if(!empty($key)) $this->apiKey = $key;}public function getError(){return implode("\n", $this->errors);}public function getCountry($host){return $this->getResult($host, 'ip-country');}public function getCity($host){return $this->getResult($host, 'ip-city');}private function getResult($host, $name){$ip = @gethostbyname($host);if(preg_match('/^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:[.](?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$/', $ip)){$xml = @file_get_contents('http://' . $this->service . '/' . $this->version . '/' . $name . '/?key=' . $this->apiKey . '&ip=' . $ip . '&format=xml');try{$response = @new SimpleXMLElement($xml);foreach($response as $field=>$value){$result[(string)$field] = (string)$value;}return $result;}catch(Exception $e){$this->errors[] = $e->getMessage();return;}}$this->errors[] = '"' . $host . '" is not a valid IP address or hostname.';return;}
}
?>

<?
include('ip2locationlite.class.php');//Load the class
$ipLite = new ip2location_lite;
$ipLite->setKey('<your_api_key>');//Get errors and locations
$locations = $ipLite->getCity($_SERVER['REMOTE_ADDR']);
$errors = $ipLite->getError();//Getting the result
echo "<p>\n";
echo "<strong>First result</strong><br />\n";
if (!empty($locations) && is_array($locations)) {foreach ($locations as $field => $val) {echo $field . ' : ' . $val . "<br />\n";}
}
echo "</p>\n";//Show errors
echo "<p>\n";
echo "<strong>Dump of all errors</strong><br />\n";
if (!empty($errors) && is_array($errors)) {foreach ($errors as $error) {echo var_dump($error) . "<br /><br />\n";}
} else {echo "No errors" . "<br />\n";
}
echo "</p>\n";

数据库版：

IP geolocation databases download

Updated Mar 5 2011

Database	Uncompressed Size(MB)	IP Precision	Data Provided	Format
DB1	1.60	123.123.123	ISO country code, country name	CSV BIN
DB3	17.11	123.123.123	ISO country code, country name, state, city	CSV BIN
DB5	21.40	123.123.123	ISO country code, country name, state, city, latitude, longitude	CSV BIN
DB9	22.76	123.123.123	ISO country code, country name, state, city, latitude, longitude, ZIP codes	CSV BIN
DB11	23.28	123.123.123	ISO country code, country name, state, city, latitude, longitude, ZIP codes, time zone	CSV BIN

key: c9dcc88453e33a9e63ebad8d65f91583e87abd8185dd95f09fbeef6c62264f7d

其他参考

http://pecl.php.net/package/geoip

http://www.geoiptool.com/

http://www.hostip.info/use.html

http://phpweby.com/software/ip2country

http://www.ipinfodb.com/index.php

转帖注明出处：http://justcoding.iteye.com/blog/986355

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php 显示ip所属地（qq版）