网站显示访客用户的基本信息IP、浏览器、浏览器版本、系统

<?php  

class class_guest_info{  
    function GetLang() {  
        $Lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 4);  
        //使用substr()截取字符串,从 0 位开始,截取4个字符  
        if (preg_match('/zh-c/i',$Lang)) {  
        //preg_match()正则表达式匹配函数  
            $Lang = '简体中文';  
        }  
        elseif (preg_match('/zh/i',$Lang)) {  
            $Lang = '繁體中文';  
        }  
        else {  
            $Lang = 'English';  
        }  
        return $Lang;  
    }
    function GetBrowser() {  
        $Browser = $_SERVER['HTTP_USER_AGENT'];  
        if (preg_match('/MSIE/i',$Browser)) {  
            $Browser = 'MSIE';  
        }  
        elseif (preg_match('/Firefox/i',$Browser)) {  
            $Browser = 'Firefox';  
        }  
        elseif (preg_match('/Chrome/i',$Browser)) {  
            $Browser = 'Chrome';  
        }  
        elseif (preg_match('/Safari/i',$Browser)) {  
            $Browser = 'Safari';  
        }  
        elseif (preg_match('/Opera/i',$Browser)) {  
            $Browser = 'Opera';  
        }  
        else {  
            $Browser = 'Other';  
        }  
        return $Browser;  
    }  
    function GetOS() {  
        $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;  
    }  
} 
$info = new class_guest_info();
$lang = $info->GetLang();
$browser = $info->GetBrowser();
$os = $info->GetOS();
echo  $lang . "&nbsp;" . "&nbsp;";
 
//获取IP地址
function get_client_ip($type = 0,$adv=true) {
    $type = $type ? 1 : 0;
    static $ip = NULL;
    if ($ip!== NULL) return $ip[$type];
    if($adv){
        if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
            $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
            $pos = array_search('unknown',$arr);
            if(false !== $pos) unset($arr[$pos]);
            $ip = trim($arr[0]);
        }elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
            $ip = $_SERVER['HTTP_CLIENT_IP'];
        }elseif (isset($_SERVER['HTTP_X_REAL_IP'])) {
            $ip = $_SERVER['HTTP_X_REAL_IP'];
        }elseif (isset($_SERVER['REMOTE_ADDR'])) {
            $ip = $_SERVER['REMOTE_ADDR'];
        }
    }elseif (isset($_SERVER['REMOTE_ADDR'])) {
        $ip = $_SERVER['REMOTE_ADDR'];
    }
    // IP地址合法验证
    $long = sprintf("%u",ip2long($ip));
    $ip   = $long ? array($ip, $long) : array('0.0.0.0', 0);
    return $ip[$type];
}
 
//获取客户端浏览器
function get_client_browser(){
	$sys = $_SERVER['HTTP_USER_AGENT'];  //获取用户代理字符串
	if (stripos($sys, "Firefox/") > 0) {
		preg_match("/Firefox\/([^;)]+)+/i", $sys, $b);
		$exp[0] = "Firefox";
		$exp[1] = $b[1];  //获取火狐浏览器的版本号
	} elseif (stripos($sys, "Maxthon") > 0) {
		preg_match("/Maxthon\/([\d\.]+)/", $sys, $aoyou);
		$exp[0] = "傲游";
		$exp[1] = $aoyou[1];
	} elseif (stripos($sys, "MSIE") > 0) {
		preg_match("/MSIE\s+([^;)]+)+/i", $sys, $ie);
		$exp[0] = "IE";
		$exp[1] = $ie[1];  //获取IE的版本号
	} elseif (stripos($sys, "OPR") > 0) {
		preg_match("/OPR\/([\d\.]+)/", $sys, $opera);
		$exp[0] = "Opera";
		$exp[1] = $opera[1];  
	} elseif(stripos($sys, "Edge") > 0) {
		//win10 Edge浏览器 添加了chrome内核标记 在判断Chrome之前匹配
		preg_match("/Edge\/([\d\.]+)/", $sys, $Edge);
		$exp[0] = "Edge";
		$exp[1] = $Edge[1];
	} elseif (stripos($sys, "Chrome") > 0) {
		preg_match("/Chrome\/([\d\.]+)/", $sys, $google);
		$exp[0] = "Chrome";
		$exp[1] = $google[1];  //获取google chrome的版本号
	} elseif(stripos($sys,'rv:')>0 && stripos($sys,'Gecko')>0){
		preg_match("/rv:([\d\.]+)/", $sys, $IE);
		$exp[0] = "IE";
		$exp[1] = $IE[1];
	}else {
		$exp[0] = "未知浏览器";
		$exp[1] = ""; 
	}
	return $exp;
}
 
//获取客户端操作系统
function get_client_os(){
	$agent = $_SERVER['HTTP_USER_AGENT'];
	$os = false;
	if (preg_match('/win/i', $agent) && strpos($agent, '95')){
		$os = 'Windows 95';
	}else if (preg_match('/win 9x/i', $agent) && strpos($agent, '4.90')){
		$os = 'Windows ME';
	}else if (preg_match('/win/i', $agent) && preg_match('/98/i', $agent)){
		$os = 'Windows 98';
	}else if (preg_match('/win/i', $agent) && preg_match('/nt 6.0/i', $agent)){
		$os = 'Windows Vista';
	}else if (preg_match('/win/i', $agent) && preg_match('/nt 6.1/i', $agent)){
		$os = 'Windows 7';
	}else if (preg_match('/win/i', $agent) && preg_match('/nt 6.2/i', $agent)){
		$os = 'Windows 8';
	}else if(preg_match('/win/i', $agent) && preg_match('/nt 10.0/i', $agent)){
		$os = 'Windows 10-11';#10和11内核一样如不显示删除-11就可以了
	}else if (preg_match('/win/i', $agent) && preg_match('/nt 5.1/i', $agent)){
		$os = 'Windows XP';
	}else if (preg_match('/win/i', $agent) && preg_match('/nt 5/i', $agent)){
		$os = 'Windows 2000';
	}else if (preg_match('/win/i', $agent) && preg_match('/nt/i', $agent)){
		$os = 'Windows NT';
	}else if (preg_match('/win/i', $agent) && preg_match('/32/i', $agent)){
		$os = 'Windows 32';
	}else if (preg_match('/linux/i', $agent)){
		$os = 'Linux';
	}else if (preg_match('/unix/i', $agent)){
		$os = 'Unix';
	}else if (preg_match('/sun/i', $agent) && preg_match('/os/i', $agent)){
		$os = 'SunOS';
	}else if (preg_match('/ibm/i', $agent) && preg_match('/os/i', $agent)){
		$os = 'IBM OS/2';
	}else if (preg_match('/Mac/i', $agent) && preg_match('/PC/i', $agent)){
		$os = 'Macintosh';
	}else if (preg_match('/PowerPC/i', $agent)){
		$os = 'PowerPC';
	}else if (preg_match('/AIX/i', $agent)){
		$os = 'AIX';
	}else if (preg_match('/HPUX/i', $agent)){
		$os = 'HPUX';
	}else if (preg_match('/NetBSD/i', $agent)){
		$os = 'NetBSD';
	}else if (preg_match('/BSD/i', $agent)){
		$os = 'BSD';
	}else if (preg_match('/OSF1/i', $agent)){
		$os = 'OSF1';
	}else if (preg_match('/IRIX/i', $agent)){
		$os = 'IRIX';
	}else if (preg_match('/FreeBSD/i', $agent)){
		$os = 'FreeBSD';
	}else if (preg_match('/teleport/i', $agent)){
		$os = 'teleport';
	}else if (preg_match('/flashget/i', $agent)){
		$os = 'flashget';
	}else if (preg_match('/webzip/i', $agent)){
		$os = 'webzip';
	}else if (preg_match('/offline/i', $agent)){
		$os = 'offline';
	}else{
		$os = '未知操作系统';
	}
	return $os;	
}
 
$client_ip = get_client_ip();
$client_browser = get_client_browser();
$client_os = get_client_os();
echo 'IP:',$client_ip,'&nbsp;&nbsp;';
echo '浏览器:',$client_browser[0],'&nbsp;</br>';
echo '浏览器版本:',$client_browser[1],'&nbsp;&nbsp;';
echo '系统:',$client_os,'';
 
?>

显示IP、浏览器、浏览器版本、系统

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