作用取得客户端的ip、地理信息、浏览器、本地真实IP

//作用取得客户端的ip、地理信息、浏览器、本地真实IP
 class  get_gust_info {
  ////获得访客浏览器类型
  function  GetBrowser(){
   if (! empty ( $_SERVER [ 'HTTP_USER_AGENT' ])){
    $br  =  $_SERVER [ 'HTTP_USER_AGENT' ];
    if  (preg_match( '/MSIE/i' , $br )) {
               $br  =  'MSIE' ;
             } elseif  (preg_match( '/Firefox/i' , $br )) {
     $br  =  'Firefox' ;
    } elseif  (preg_match( '/Chrome/i' , $br )) {
     $br  =  'Chrome' ;
       } elseif  (preg_match( '/Safari/i' , $br )) {
     $br  =  'Safari' ;
    } elseif  (preg_match( '/Opera/i' , $br )) {
        $br  =  'Opera' ;
    } else  {
        $br  =  'Other' ;
    }
    return  $br ;
   } else { return  "获取浏览器信息失败！" ;}
  }

  ////获得访客浏览器语言
  function  GetLang(){
   if (! empty ( $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ])){
    $lang  =  $_SERVER [ 'HTTP_ACCEPT_LANGUAGE' ];
    $lang  =  substr ( $lang ,0,5);
    if (preg_match( "/zh-cn/i" , $lang )){
     $lang  =  "简体中文" ;
    } elseif (preg_match( "/zh/i" , $lang )){
     $lang  =  "繁体中文" ;
    } else {
        $lang  =  "English" ;
    }
    return  $lang ;

   } else { return  "获取浏览器语言失败！" ;}
  }

   ////获取访客操作系统
  function  GetOs(){
   if (! empty ( $_SERVER [ 'HTTP_USER_AGENT' ])){
    $OS  =  $_SERVER [ 'HTTP_USER_AGENT' ];
      if  (preg_match( '/win/i' , $OS )) {
     $OS  =  'Windows' ;
    } elseif  (preg_match( '/mac/i' , $OS )) {
     $OS  =  'MAC' ;
    } elseif  (preg_match( '/linux/i' , $OS )) {
     $OS  =  'Linux' ;
    } elseif  (preg_match( '/unix/i' , $OS )) {
     $OS  =  'Unix' ;
    } elseif  (preg_match( '/bsd/i' , $OS )) {
     $OS  =  'BSD' ;
    } else  {
     $OS  =  'Other' ;
    }
          return  $OS ;
   } else { return  "获取访客操作系统信息失败！" ;}
  }

  ////获得访客真实ip
  function  Getip(){
   if (! empty ( $_SERVER [ "HTTP_CLIENT_IP" ])){
      $ip  =  $_SERVER [ "HTTP_CLIENT_IP" ];
   }
   if (! empty ( $_SERVER [ 'HTTP_X_FORWARDED_FOR' ])){  //获取代理ip
    $ips  =  explode ( ',' , $_SERVER [ 'HTTP_X_FORWARDED_FOR' ]);
   }
   if ( $ip ){
      $ips  =  array_unshift ( $ips , $ip );
   }

   $count  =  count ( $ips );
   for ( $i =0; $i < $count ; $i ++){
     if (!preg_match( "/^(10|172\.16|192\.168)\./i" , $ips [ $i ])){ //排除局域网ip
      $ip  =  $ips [ $i ];
      break ;
      }
   }
   $tip  =  empty ( $_SERVER [ 'REMOTE_ADDR' ]) ?  $ip  :  $_SERVER [ 'REMOTE_ADDR' ];
   if ( $tip == "127.0.0.1" ){  //获得本地真实IP
      return  $this ->get_onlineip();
   } else {
      return  $tip ;
   }
  }

  ////获得本地真实IP
  function  get_onlineip() {
      $mip  =  file_get_contents ( "http://city.ip138.com/city0.asp" );
       if ( $mip ){
           preg_match( "/\[.*\]/" , $mip , $sip );
           $p  =  array ( "/\[/" , "/\]/" );
           return  preg_replace( $p , "" , $sip [0]);
       } else { return  "获取本地IP失败！" ;}
   }

  ////根据ip获得访客所在地地名
  function  Getaddress( $ip = '' ){
   if ( empty ( $ip )){
       $ip  =  $this ->Getip();
   }
   $ipadd  =  file_get_contents ( "http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip=" . $ip );//根据新浪api接口获取
   if ( $ipadd ){
    $charset  = iconv( "gbk" , "utf-8" , $ipadd );
    preg_match_all( "/[\x{4e00}-\x{9fa5}]+/u" , $charset , $ipadds );

    return  $ipadds ;    //返回一个二维数组
   } else { return  "addree is none" ;}
  }
 }
 $gifo  =  new  get_gust_info();
 echo  "你的ip:" . $gifo ->Getip();
 echo  "<br/>所在地：" ;
 $ipadds  =  $gifo ->Getaddress();
 foreach ( $ipadds [0]  as  $value ){
     echo  "\r\n    " .iconv( "utf-8" , "gbk" , $value );
 }

 echo  "<br/>浏览器类型：" . $gifo ->GetBrowser();
 echo  "<br/>浏览器语言：" . $gifo ->GetLang();
 echo  "<br/>操作系统：" . $gifo ->GetOs();