PHP探针获取客户端信息

<?php
class getinfo
{
    /*
    getbrowse() get browse edition
    getOS() get computy edition
    nowurl() get url at moment
    comurl() get come url
    browerinfo() get browse information
    language() get IE language
    timeset() get Server time set
    getIP() get custom ip   
    */ www.jbxue.com
    function getbrowser()
    {
        $Agent = $_SERVER['HTTP_USER_AGENT'];
        $browser = '';
        $browserver = '';
        $Browser = array('Lynx', 'MOSAIC', 'AOL', 'Opera', 'JAVA', 'MacWeb', 'WebExplorer', 'OmniWeb');
        for($i = 0; $i <= 7; $i ++)
        {
            if(strpos($Agent, $Browser[$i]))
            {
                $browser = $Browser[$i];
                $browserver = '';
            }
        }
        if(ereg('Mozilla', $Agent) && !ereg('MSIE', $Agent))
        {
            $temp = explode('(', $Agent);
            $Part = $temp[0];
            $temp = explode('/', $Part);
            $browserver = $temp[1];
            $temp = explode(' ', $browserver);
            $browserver = $temp[0];
            $browserver = preg_replace('/([d.]+)/', '.', $browserver);
            $browserver = $browserver;
            $browser = 'Netscape Navigator';
        }
        if(ereg('Mozilla', $Agent) && ereg('Opera', $Agent))
        {
            $temp = explode('(', $Agent);
            $Part = $temp[1];
            $temp = explode(')', $Part);
            $browserver = $temp[1];
            $temp = explode(' ', $browserver);
            $browserver = $temp[2];
            $browserver = preg_replace('/([d.]+)/', '.', $browserver);
            $browserver = $browserver;
            $browser = 'Opera';
        }
        if(ereg('Mozilla', $Agent) && ereg('MSIE', $Agent))
        {
            $temp = explode('(', $Agent);
            $Part = $temp[1];
            $temp = explode(';', $Part);
            $Part = $temp[1];
            $temp = explode(' ', $Part);
            $browserver = $temp[2];
            $browserver = preg_replace('/([d.]+)/','.',$browserver);
            $browserver = $browserver;
            $browser = 'Internet Explorer';
        }
        if($browser != '')
        {
            $browseinfo = $browser.' '.$browserver;
        }
        else
        {
            $browseinfo = false;
        }
        return $browseinfo;
    }
   
    function getOS ()
    {
        $agent = $_SERVER['HTTP_USER_AGENT'];
        $os = false;
        if (eregi('win', $agent) && strpos($agent, '95'))
        {
            $os = 'Windows 95';
        }
        else if (eregi('win 9x', $agent) && strpos($agent, '4.90'))
        {
            $os = 'Windows ME';
        }
        else if (eregi('win', $agent) && ereg('98', $agent))
        {
            $os = 'Windows 98';
        }
        else if (eregi('win', $agent) && eregi('nt 5.2', $agent))
        {
            $os = 'Windows Server 2003';
        }
        else if (eregi('win', $agent) && eregi('nt 5.1', $agent))
        {
            $os = 'Windows XP';
        }
        else if (eregi('win', $agent) && eregi('nt 5', $agent))
        {
            $os = 'Windows Server 2000';
        }
        else if (eregi('win', $agent) && eregi('nt', $agent))
        {
            $os = 'Windows NT';
        }
        else if (eregi('win', $agent) && ereg('32', $agent))
        {
            $os = 'Windows 32';
        }
        else if (eregi('linux', $agent))
        {
            $os = 'Linux';
        }
        else if (eregi('unix', $agent))
        {
            $os = 'Unix';
        }
        else if (eregi('sun', $agent) && eregi('os', $agent))
        {
            $os = 'SunOS';
        }
        else if (eregi('ibm', $agent) && eregi('os', $agent))
        {
            $os = 'IBM OS/2';
        }
        else if (eregi('Mac', $agent) && eregi('PC', $agent))
        {
            $os = 'Macintosh';
        }
        else if (eregi('PowerPC', $agent))
        {
            $os = 'PowerPC';
        }
        else if (eregi('AIX', $agent))
        {
            $os = 'AIX';
        }
        else if (eregi('HPUX', $agent))
        {
        $os = 'HPUX';
        }
        else if (eregi('NetBSD', $agent))
        {
            $os = 'NetBSD';
        }
        else if (eregi('BSD', $agent))
        {
            $os = 'BSD';
        }
        else if (ereg('OSF1', $agent))
        {
            $os = 'OSF1';
        }
        else if (ereg('IRIX', $agent))
        {
            $os = 'IRIX';
        }
        else if (eregi('FreeBSD', $agent))
        {
            $os = 'FreeBSD';
        }
        else if (eregi('teleport', $agent))
        {
            $os = 'teleport';
        }
        else if (eregi('flashget', $agent))
        {
            $os = 'flashget';
        }
        else if (eregi('webzip', $agent))
        {
            $os = 'webzip';
        }
        else if (eregi('offline', $agent))
        {
            $os = 'offline';
        }
        else
        {
            $os = 'Unknown';
        }
        return $os;
    }
   
    function comurl()
    {
        if( !empty( $_SERVER['HTTP_REFERER'] ) )
        {
            return  $_SERVER['HTTP_REFERER'];
        }
        else
        {
            return "";
        }
    }
   
    function browserinfo()
    {
        return $_SERVER['HTTP_USER_AGENT'];
    }
   
   
    function nowurl()
    {
        return "http://".$_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF'];
    }

    function language()
    {
        return $_SERVER['HTTP_ACCEPT_LANGUAGE'];
    }

    function timeset()
    {
        return date_default_timezone_get();
     }

    function getIP() //get ip address
    {
        if (getenv('HTTP_CLIENT_IP'))
        {
            $ip = getenv('HTTP_CLIENT_IP');
        }
        else if (getenv('HTTP_X_FORWARDED_FOR'))
        {
            $ip = getenv('HTTP_X_FORWARDED_FOR');
        }
        else if (getenv('REMOTE_ADDR'))
        {
            $ip = getenv('REMOTE_ADDR');
        }
        else
        {
            $ip = $_SERVER['REMOTE_ADDR'];
        }
        return $ip;
    }
}