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PHP获取访客IP和地理位置等信息的类

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Release: 2016-05-25 17:13:12
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<?php   
/**  
 * 获取访客信息的类:语言、浏览器、操作系统、IP、地理位置、ISP。  
 * 日期:2011-09-13  
 * 作者:www.itwhy.org  
 * 使用:  
 *      $obj = new class_guest_info;  
 *      $obj->GetLang();        //获取访客语言:简体中文、繁體中文、English。  
 *      $obj->GetBrowser();     //获取访客浏览器:MSIE、Firefox、Chrome、Safari、Opera、Other。  
 *      $obj->GetOS();          //获取访客操作系统:Windows、MAC、Linux、Unix、BSD、Other。  
 *      $obj->GetIP();          //获取访客IP地址。  
 *      $obj->GetAdd();         //获取访客地理位置,使用 Baidu 隐藏接口。  
 *      $obj->GetIsp();         //获取访客ISP,使用 Baidu 隐藏接口。  
 */  
class class_guest_info{   
    function GetLang() {   
        $Lang = substr($_SERVER[&#39;HTTP_ACCEPT_LANGUAGE&#39;], 0, 4);   
        //使用substr()截取字符串,从 0 位开始,截取4个字符   
        if (preg_match(&#39;/zh-c/i&#39;,$Lang)) {   
        //preg_match()正则表达式匹配函数   
            $Lang = &#39;简体中文&#39;;   
        }   
        elseif (preg_match(&#39;/zh/i&#39;,$Lang)) {   
            $Lang = &#39;繁體中文&#39;;   
        }   
        else {   
            $Lang = &#39;English&#39;;   
        }   
        return $Lang;   
    }   
    function GetBrowser() {   
        $Browser = $_SERVER[&#39;HTTP_USER_AGENT&#39;];   
        if (preg_match(&#39;/MSIE/i&#39;,$Browser)) {   
            $Browser = &#39;MSIE&#39;;   
        }   
        elseif (preg_match(&#39;/Firefox/i&#39;,$Browser)) {   
            $Browser = &#39;Firefox&#39;;   
        }   
        elseif (preg_match(&#39;/Chrome/i&#39;,$Browser)) {   
            $Browser = &#39;Chrome&#39;;   
        }   
        elseif (preg_match(&#39;/Safari/i&#39;,$Browser)) {   
            $Browser = &#39;Safari&#39;;   
        }   
        elseif (preg_match(&#39;/Opera/i&#39;,$Browser)) {   
            $Browser = &#39;Opera&#39;;   
        }   
        else {   
            $Browser = &#39;Other&#39;;   
        }   
        return $Browser;   
    }   
    function GetOS() {   
        $OS = $_SERVER[&#39;HTTP_USER_AGENT&#39;];   
        if (preg_match(&#39;/win/i&#39;,$OS)) {   
            $OS = &#39;Windows&#39;;   
        }   
        elseif (preg_match(&#39;/mac/i&#39;,$OS)) {   
            $OS = &#39;MAC&#39;;   
        }   
        elseif (preg_match(&#39;/linux/i&#39;,$OS)) {   
            $OS = &#39;Linux&#39;;   
        }   
        elseif (preg_match(&#39;/unix/i&#39;,$OS)) {   
            $OS = &#39;Unix&#39;;   
        }   
        elseif (preg_match(&#39;/bsd/i&#39;,$OS)) {   
            $OS = &#39;BSD&#39;;   
        }   
        else {   
            $OS = &#39;Other&#39;;   
        }   
        return $OS;   
    }   
    function GetIP() {   
        if (!emptyempty($_SERVER[&#39;HTTP_CLIENT_IP&#39;])) {   
        //如果变量是非空或非零的值,则 empty()返回 FALSE。   
            $IP = explode(&#39;,&#39;,$_SERVER[&#39;HTTP_CLIENT_IP&#39;]);   
        }   
        elseif (!emptyempty($_SERVER[&#39;HTTP_X_FORWARDED_FOR&#39;])) {   
            $IP = explode(&#39;,&#39;,$_SERVER[&#39;HTTP_X_FORWARDED_FOR&#39;]);   
        }   
        elseif (!emptyempty($_SERVER[&#39;REMOTE_ADDR&#39;])) {   
            $IP = explode(&#39;,&#39;,$_SERVER[&#39;REMOTE_ADDR&#39;]);   
        }   
        else {   
            $IP[0] = &#39;None&#39;;   
        }   
        return $IP[0];   
    }   
    private function GetAddIsp() {   
        $IP = $this->GetIP();   
        $AddIsp = mb_convert_encoding(file_get_contents(&#39;http://open.baidu.com/ipsearch/s?tn=ipjson&wd=&#39;.$IP),&#39;UTF-8&#39;,&#39;GBK&#39;);   
        //mb_convert_encoding() 转换字符编码。   
        if (preg_match(&#39;/noresult/i&#39;,$AddIsp)) {   
            $AddIsp = &#39;None&#39;;   
        }   
        else {   
            $Sta = stripos($AddIsp,$IP) + strlen($IP) + strlen(&#39;来自&#39;);   
            $Len = stripos($AddIsp,&#39;"}&#39;)-$Sta;   
            $AddIsp = substr($AddIsp,$Sta,$Len);   
        }   
        $AddIsp = explode(&#39; &#39;,$AddIsp);   
        return $AddIsp;   
    }   
    function GetAdd() {   
        $Add = $this->GetAddIsp();   
        return $Add[0];   
    }   
    function GetIsp() {   
        $Isp = $this->GetAddIsp();   
        if ($Isp[0] != &#39;None&#39; && isset($Isp[1])) {   
            $Isp = $Isp[1];   
        }   
        else {   
            $Isp = &#39;None&#39;;   
        }   
        return $Isp;   
    }   
}   
?>
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