淘寶公司提供了一個很好用的IP地理信息查詢接口。在這里:http://ip.taobao.com/

以下這個taobaoIPQuery類將極大的簡化相關的信息查詢。

復制代碼 代碼如下:
<?php

class taobaoIPQuery {

    private $m_ip;
    private $m_content;

    public function __construct($ip) {
        if (isset($ip)) {
            $this->m_ip = $ip;
        } else {
            $this->m_ip = "";
        }
        if (!empty($this->m_ip)) {
            $url_handle = curl_init();
            curl_setopt($url_handle, CURLOPT_URL, "http://ip.taobao.com/service/getIpInfo.php?ip=" . $this->m_ip);
            curl_setopt($url_handle, CURLOPT_RETURNTRANSFER, true);
            $this->m_content = curl_exec($url_handle);
            curl_close($url_handle);
            if ($this->m_content) {
                $this->m_content = json_decode($this->m_content);
                if ($this->m_content->{'code'} == 1) {
                    exit("query error!");
                }
            } else {
                exit("curl error!");
            }
        } else {
            exit("ip address must be not empty!");
        }
    }

    public function get_region() {
        return $this->m_content->{'data'}->{'region'};
    }

    public function get_isp() {
        return $this->m_content->{'data'}->{'isp'};
    }

    public function get_country() {
        return $this->m_content->{'data'}->{'country'};
    }

    public function get_city() {
        return $this->m_content->{'data'}->{'city'};
    }

}

調用很簡單

復制代碼 代碼如下:
$ip = $_SERVER["REMOTE_ADDR"];
$ipquery = new taobaoIPQuery($ip);
$region = $ipquery->get_region();
$country = $ipquery->get_country();
$city = $ipquery->get_city();

php技術：淘寶ip地址查詢類分享(利用淘寶ip庫)，轉載需保留來源！

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