<?php

class Tool{

    /**

     * 获取IP的归属地( 新浪IP库 )

     *

     * @param $ip String        IP地址：112.65.102.16

     * @return Array

     */

    static public function getIpCity($ip)

    {

        $ip = preg_replace("/\s/","",preg_replace("/\r\n/","",$ip));

        $link = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=".$ip."&t=".time();

        $ipJson = self::httpCurl($link);

        preg_match("/\"country\":\"(.*)\"/Uis",$ipJson, $match1);

        preg_match("/\"province\":\"(.*)\"/Uis",$ipJson, $match2);

        preg_match("/\"city\":\"(.*)\"/Uis",$ipJson, $match3);

        return array(

            'country'=>self::ucode2zh($match1[1]),  // 国家

            'province'=>self::ucode2zh($match2[1]), // 省

            'city'=>self::ucode2zh($match3[1])      // 城市

        );

    }

    /**

     * Curl方式获取信息

     */

    static public function httpCurl($url)

    {

        $curl_handle = curl_init();

        curl_setopt($curl_handle, CURLOPT_URL, $url);

        curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT,2);

        curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER,1);

        curl_setopt($curl_handle, CURLOPT_FAILONERROR,1);

        $file_content = curl_exec($curl_handle);

        curl_close($curl_handle);

        return $file_content;

    }

    /**

     * 将unicode编码转化为中文，转化失败返回原字符串

     *

     * @param $code String      unicode编码

     * @return String

     */

    static public function ucode2zh($code)

    {

        $temp = explode('\u',$code);

        $rslt = array();

        array_shift($temp);

        foreach($temp as $k => $v)

        {

            $v = hexdec($v);

            $rslt[] = '&#' . $v . ';';

        }

        $r = implode('',$rslt);

        return empty($r) ? $code : $r;

    }

}

<?php

$ipStr = Tool::getIpCity('112.65.102.16');

print_r($ipStr);

# 返回结果

Array ( [country] => 中国 [province] => 上海 [city] => 上海 )