php 获取操作系统信息

Get operating system info

提问by pattyd

I recently started wondering about sites like http://thismachine.info/that get the user's operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out.

我最近开始想知道像http://thismachine.info/这样获取用户操作系统信息的网站。我一直无法找到如何用 PHP 做到这一点，并想尝试弄清楚。

I noticed that they list the user-agent, which gives lots of info about the browser. Do they get the operating system information from that, or from something else? Is there an API I could use to get the user's operating system?

我注意到他们列出了user-agent，它提供了有关浏览器的大量信息。他们是从中获取操作系统信息，还是从其他方面获取信息？是否有可用于获取用户操作系统的 API？

I see how they got the Browser and IP, but could not figure out the Operating System part!

我看到他们如何获得浏览器和 IP，但无法弄清楚操作系统部分！

回答by Funk Forty Niner

The code below could explain in its own right, how http://thismachine.info/is able to show which operating system someone is using.

下面的代码本身就可以解释http://thismachine.info/如何能够显示某人正在使用哪个操作系统。

What it does is that, it sniffs your core operating system model, for example windows nt 5.1as my own.

它的作用是，它嗅探您的核心操作系统模型，例如windows nt 5.1作为我自己的模型。

It then passes windows nt 5.1/i to Windows XP as the operating system.

然后它将 windows nt 5.1/i 作为操作系统传递给 Windows XP。

Using: '/windows nt 5.1/i' => 'Windows XP',from an array.

使用：'/windows nt 5.1/i' => 'Windows XP',来自一个数组。

You could say guesswork, or an approximation yet nonetheless pretty much bang on.

您可以说是猜测，也可以是近似值，但仍然非常有用。

Borrowed from an answer on SO https://stackoverflow.com/a/15497878/

借用 SO https://stackoverflow.com/a/15497878/上的答案

<?php

$user_agent = $_SERVER['HTTP_USER_AGENT'];

function getOS() { 

    global $user_agent;

    $os_platform  = "Unknown OS Platform";

    $os_array     = array(
                          '/windows nt 10/i'      =>  'Windows 10',
                          '/windows nt 6.3/i'     =>  'Windows 8.1',
                          '/windows nt 6.2/i'     =>  'Windows 8',
                          '/windows nt 6.1/i'     =>  'Windows 7',
                          '/windows nt 6.0/i'     =>  'Windows Vista',
                          '/windows nt 5.2/i'     =>  'Windows Server 2003/XP x64',
                          '/windows nt 5.1/i'     =>  'Windows XP',
                          '/windows xp/i'         =>  'Windows XP',
                          '/windows nt 5.0/i'     =>  'Windows 2000',
                          '/windows me/i'         =>  'Windows ME',
                          '/win98/i'              =>  'Windows 98',
                          '/win95/i'              =>  'Windows 95',
                          '/win16/i'              =>  'Windows 3.11',
                          '/macintosh|mac os x/i' =>  'Mac OS X',
                          '/mac_powerpc/i'        =>  'Mac OS 9',
                          '/linux/i'              =>  'Linux',
                          '/ubuntu/i'             =>  'Ubuntu',
                          '/iphone/i'             =>  'iPhone',
                          '/ipod/i'               =>  'iPod',
                          '/ipad/i'               =>  'iPad',
                          '/android/i'            =>  'Android',
                          '/blackberry/i'         =>  'BlackBerry',
                          '/webos/i'              =>  'Mobile'
                    );

    foreach ($os_array as $regex => $value)
        if (preg_match($regex, $user_agent))
            $os_platform = $value;

    return $os_platform;
}

function getBrowser() {

    global $user_agent;

    $browser        = "Unknown Browser";

    $browser_array = array(
                            '/msie/i'      => 'Internet Explorer',
                            '/firefox/i'   => 'Firefox',
                            '/safari/i'    => 'Safari',
                            '/chrome/i'    => 'Chrome',
                            '/edge/i'      => 'Edge',
                            '/opera/i'     => 'Opera',
                            '/netscape/i'  => 'Netscape',
                            '/maxthon/i'   => 'Maxthon',
                            '/konqueror/i' => 'Konqueror',
                            '/mobile/i'    => 'Handheld Browser'
                     );

    foreach ($browser_array as $regex => $value)
        if (preg_match($regex, $user_agent))
            $browser = $value;

    return $browser;
}


$user_os        = getOS();
$user_browser   = getBrowser();

$device_details = "<strong>Browser: </strong>".$user_browser."<br /><strong>Operating System: </strong>".$user_os."";

print_r($device_details);

echo("<br /><br /><br />".$_SERVER['HTTP_USER_AGENT']."");

?>

---

---

Footnotes: (Jan. 19/14)There was a suggested editon Jan. 18, 2014 to add /msie|trident/iby YJSofta new member on SO.

脚注： （1月。19/14）有一个建议编辑于2014年1月18日加入/msie|trident/i由YJSoft新件上的。

The comment read as:

评论如下：

Comment: because msie11's ua doesn't include msie (it includes trident instead)

评论：因为msie11的ua不包括msie（它包括三叉戟）

I researched this for a bit, and found a few links explaining the Trident string.

我对此进行了一些研究，并找到了一些解释 Trident 字符串的链接。

• http://www.sitepoint.com/ie11-smells-like-firefox/
• http://www.upsdell.ca/BrowserNews/res_sniff.htm
• How can I target only Internet Explorer 11 with JavaScript?
• http://en.wikipedia.org/wiki/Trident_%28layout_engine%29
• https://stackoverflow.com/a/17907562/1415724
• http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.110).aspx
• An article on MSDN Blogs
• An article on NCZOnline

• http://www.sitepoint.com/ie11-smells-like-firefox/
• http://www.upsdel​​l.ca/BrowserNews/res_sniff.htm
• 如何使用 JavaScript 仅针对 Internet Explorer 11？
• http://en.wikipedia.org/wiki/Trident_%28layout_engine%29
• https://stackoverflow.com/a/17907562/1415724
• http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.110).aspx
• 一篇关于 MSDN 博客的文章
• NCZOnline 上的一篇文章

Although the edit was rejected(not by myself, but by some of the other editors), it's worth reading up on the links above, and to use your proper judgement.

虽然编辑被拒绝了（不是我自己，而是其他一些编辑），但还是值得阅读上面的链接，并使用您的正确判断。

---

---

As per a question asked about detecting SUSE, have found this piece of code at the following URL:

根据有关检测 SUSE 的问题，在以下 URL 中找到了这段代码：

• http://codes-sources.commentcamarche.net/source/49533-operating-system-detection

• http://codes-sources.commentcamarche.net/source/49533-operating-system-detection

Additional code:

附加代码：

/* return Operating System */
function operating_system_detection(){
    if ( isset( $_SERVER ) ) {
        $agent = $_SERVER['HTTP_USER_AGENT'];
    }
    else {
        global $HTTP_SERVER_VARS;
        if ( isset( $HTTP_SERVER_VARS ) ) {
            $agent = $HTTP_SERVER_VARS['HTTP_USER_AGENT'];
        }
        else {
            global $HTTP_USER_AGENT;
            $agent = $HTTP_USER_AGENT;
        }
    }
    $ros[] = array('Windows XP', 'Windows XP');
    $ros[] = array('Windows NT 5.1|Windows NT5.1)', 'Windows XP');
    $ros[] = array('Windows 2000', 'Windows 2000');
    $ros[] = array('Windows NT 5.0', 'Windows 2000');
    $ros[] = array('Windows NT 4.0|WinNT4.0', 'Windows NT');
    $ros[] = array('Windows NT 5.2', 'Windows Server 2003');
    $ros[] = array('Windows NT 6.0', 'Windows Vista');
    $ros[] = array('Windows NT 7.0', 'Windows 7');
    $ros[] = array('Windows CE', 'Windows CE');
    $ros[] = array('(media center pc).([0-9]{1,2}\.[0-9]{1,2})', 'Windows Media Center');
    $ros[] = array('(win)([0-9]{1,2}\.[0-9x]{1,2})', 'Windows');
    $ros[] = array('(win)([0-9]{2})', 'Windows');
    $ros[] = array('(windows)([0-9x]{2})', 'Windows');
    // Doesn't seem like these are necessary...not totally sure though..
    //$ros[] = array('(winnt)([0-9]{1,2}\.[0-9]{1,2}){0,1}', 'Windows NT');
    //$ros[] = array('(windows nt)(([0-9]{1,2}\.[0-9]{1,2}){0,1})', 'Windows NT'); // fix by bg
    $ros[] = array('Windows ME', 'Windows ME');
    $ros[] = array('Win 9x 4.90', 'Windows ME');
    $ros[] = array('Windows 98|Win98', 'Windows 98');
    $ros[] = array('Windows 95', 'Windows 95');
    $ros[] = array('(windows)([0-9]{1,2}\.[0-9]{1,2})', 'Windows');
    $ros[] = array('win32', 'Windows');
    $ros[] = array('(java)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,2})', 'Java');
    $ros[] = array('(Solaris)([0-9]{1,2}\.[0-9x]{1,2}){0,1}', 'Solaris');
    $ros[] = array('dos x86', 'DOS');
    $ros[] = array('unix', 'Unix');
    $ros[] = array('Mac OS X', 'Mac OS X');
    $ros[] = array('Mac_PowerPC', 'Macintosh PowerPC');
    $ros[] = array('(mac|Macintosh)', 'Mac OS');
    $ros[] = array('(sunos)([0-9]{1,2}\.[0-9]{1,2}){0,1}', 'SunOS');
    $ros[] = array('(beos)([0-9]{1,2}\.[0-9]{1,2}){0,1}', 'BeOS');
    $ros[] = array('(risc os)([0-9]{1,2}\.[0-9]{1,2})', 'RISC OS');
    $ros[] = array('os/2', 'OS/2');
    $ros[] = array('freebsd', 'FreeBSD');
    $ros[] = array('openbsd', 'OpenBSD');
    $ros[] = array('netbsd', 'NetBSD');
    $ros[] = array('irix', 'IRIX');
    $ros[] = array('plan9', 'Plan9');
    $ros[] = array('osf', 'OSF');
    $ros[] = array('aix', 'AIX');
    $ros[] = array('GNU Hurd', 'GNU Hurd');
    $ros[] = array('(fedora)', 'Linux - Fedora');
    $ros[] = array('(kubuntu)', 'Linux - Kubuntu');
    $ros[] = array('(ubuntu)', 'Linux - Ubuntu');
    $ros[] = array('(debian)', 'Linux - Debian');
    $ros[] = array('(CentOS)', 'Linux - CentOS');
    $ros[] = array('(Mandriva).([0-9]{1,3}(\.[0-9]{1,3})?(\.[0-9]{1,3})?)', 'Linux - Mandriva');
    $ros[] = array('(SUSE).([0-9]{1,3}(\.[0-9]{1,3})?(\.[0-9]{1,3})?)', 'Linux - SUSE');
    $ros[] = array('(Dropline)', 'Linux - Slackware (Dropline GNOME)');
    $ros[] = array('(ASPLinux)', 'Linux - ASPLinux');
    $ros[] = array('(Red Hat)', 'Linux - Red Hat');
    // Loads of Linux machines will be detected as unix.
    // Actually, all of the linux machines I've checked have the 'X11' in the User Agent.
    //$ros[] = array('X11', 'Unix');
    $ros[] = array('(linux)', 'Linux');
    $ros[] = array('(amigaos)([0-9]{1,2}\.[0-9]{1,2})', 'AmigaOS');
    $ros[] = array('amiga-aweb', 'AmigaOS');
    $ros[] = array('amiga', 'Amiga');
    $ros[] = array('AvantGo', 'PalmOS');
    //$ros[] = array('(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1}-([0-9]{1,2}) i([0-9]{1})86){1}', 'Linux');
    //$ros[] = array('(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1} i([0-9]{1}86)){1}', 'Linux');
    //$ros[] = array('(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1})', 'Linux');
    $ros[] = array('[0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3})', 'Linux');
    $ros[] = array('(webtv)/([0-9]{1,2}\.[0-9]{1,2})', 'WebTV');
    $ros[] = array('Dreamcast', 'Dreamcast OS');
    $ros[] = array('GetRight', 'Windows');
    $ros[] = array('go!zilla', 'Windows');
    $ros[] = array('gozilla', 'Windows');
    $ros[] = array('gulliver', 'Windows');
    $ros[] = array('ia archiver', 'Windows');
    $ros[] = array('NetPositive', 'Windows');
    $ros[] = array('mass downloader', 'Windows');
    $ros[] = array('microsoft', 'Windows');
    $ros[] = array('offline explorer', 'Windows');
    $ros[] = array('teleport', 'Windows');
    $ros[] = array('web downloader', 'Windows');
    $ros[] = array('webcapture', 'Windows');
    $ros[] = array('webcollage', 'Windows');
    $ros[] = array('webcopier', 'Windows');
    $ros[] = array('webstripper', 'Windows');
    $ros[] = array('webzip', 'Windows');
    $ros[] = array('wget', 'Windows');
    $ros[] = array('Java', 'Unknown');
    $ros[] = array('flashget', 'Windows');
    // delete next line if the script show not the right OS
    //$ros[] = array('(PHP)/([0-9]{1,2}.[0-9]{1,2})', 'PHP');
    $ros[] = array('MS FrontPage', 'Windows');
    $ros[] = array('(msproxy)/([0-9]{1,2}.[0-9]{1,2})', 'Windows');
    $ros[] = array('(msie)([0-9]{1,2}.[0-9]{1,2})', 'Windows');
    $ros[] = array('libwww-perl', 'Unix');
    $ros[] = array('UP.Browser', 'Windows CE');
    $ros[] = array('NetAnts', 'Windows');
    $file = count ( $ros );
    $os = '';
    for ( $n=0 ; $n<$file ; $n++ ){
        if ( preg_match('/'.$ros[$n][0].'/i' , $agent, $name)){
            $os = @$ros[$n][1].' '.@$name[2];
            break;
        }
    }
    return trim ( $os );
}

---

---

Edit: April 12, 2015

编辑：2015 年 4 月 12 日

I noticed a question yesterday that could be relevant to this Q&A and may be helpful for some. In regards to:

我昨天注意到一个问题，它可能与此问答相关，并且可能对某些人有所帮助。关于：

Mozilla/5.0 (Linux; Android 4.4.2; SAMSUNG-GT-I9505 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36

Mozilla/5.0 (Linux; Android 4.4.2; SAMSUNG-GT-I9505 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36

• Question: Store specific data in variable from another variable with regex with PHP
• Answer: https://stackoverflow.com/a/29584014/

• 问题：使用 PHP 使用正则表达式将特定数据存储在来自另一个变量的变量中
• 答案：https: //stackoverflow.com/a/29584014/

---

---

Another edit, and adding a reference link that was asked (and answered/accepted today, Nov. 4/16) which may be of use.

另一个编辑，并添加了一个可能有用的参考链接（并于 16 年 11 月 4 日今天回答/接受）。

Consult the Q&A here on Stack:

在 Stack 上查阅此处的问答：

• PHP Regex for OS detection

• 用于操作系统检测的 PHP 正则表达式

回答by kba

When you go to a website, your browser sends a request to the web server including a lot of information. This information might look something like this:

当您访问某个网站时，您的浏览器会向 Web 服务器发送包含大量信息的请求。此信息可能如下所示：

GET /questions/18070154/get-operating-system-info-with-php HTTP/1.1  
Host: stackoverflow.com  
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/537.36 
            (KHTML, like Gecko) Chrome/28.0.1500.95 Safari/537.36 
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-us,en;q=0.5  
Accept-Encoding: gzip,deflate,sdch  
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7  
Keep-Alive: 300  
Connection: keep-alive  
Cookie: <cookie data removed> 
Pragma: no-cache  
Cache-Control: no-cache

These information are all used by the web server to determine how to handle the request; the preferred language and whether compression is allowed.

这些信息都被 Web 服务器用来决定如何处理请求；首选语言以及是否允许压缩。

In PHP, all this information is stored in the $_SERVERarray. To see what you're sending to a web server, create a new PHP file and print out everything from the array.

在 PHP 中，所有这些信息都存储在$_SERVER数组中。要查看发送到 Web 服务器的内容，请创建一个新的 PHP 文件并打印出数组中的所有内容。

<pre><?php print_r($_SERVER); ?></pre>

This will give you a nice representation of everything that's being sent to the server, from where you can extract the desired information, e.g. $_SERVER['HTTP_USER_AGENT']to get the operating system and browser.

这将为您提供发送到服务器的所有内容的良好表示，您可以从中提取所需的信息，例如$_SERVER['HTTP_USER_AGENT']获取操作系统和浏览器。

回答by vee

Took the following code from php manual for get_browser.

从 php 手册中为get_browser获取以下代码。

$browser = get_browser(null, true);
print_r($browser);

The $browserarray has platforminformation included which gives you the specific Operating System in use.

该$browser阵列包含的platform信息可为您提供正在使用的特定操作系统。

Please make sure to see the "Notes" section in that page. This might be something (thismachine.info) is using if not something already pointed in other answers.

请务必查看该页面中的“注释”部分。这可能是 (thismachine.info) 正在使用的东西，如果不是其他答案中已经指出的东西。

回答by Timo Huovinen

Based on the answerby Fred-III wanted to share my take on the getOS function, it avoids globals, merges both lists and detects the architecture (x32/x64)

根据Fred-II的回答，我想分享我对 getOS 函数的看法，它避免了全局变量，合并了两个列表并检测了架构 (x32/x64)

/**
 * @param $user_agent null
 * @return string
 */
function getOS($user_agent = null)
{
    if(!isset($user_agent) && isset($_SERVER['HTTP_USER_AGENT'])) {
        $user_agent = $_SERVER['HTTP_USER_AGENT'];
    }

    // https://stackoverflow.com/questions/18070154/get-operating-system-info-with-php
    $os_array = [
        'windows nt 10'                              =>  'Windows 10',
        'windows nt 6.3'                             =>  'Windows 8.1',
        'windows nt 6.2'                             =>  'Windows 8',
        'windows nt 6.1|windows nt 7.0'              =>  'Windows 7',
        'windows nt 6.0'                             =>  'Windows Vista',
        'windows nt 5.2'                             =>  'Windows Server 2003/XP x64',
        'windows nt 5.1'                             =>  'Windows XP',
        'windows xp'                                 =>  'Windows XP',
        'windows nt 5.0|windows nt5.1|windows 2000'  =>  'Windows 2000',
        'windows me'                                 =>  'Windows ME',
        'windows nt 4.0|winnt4.0'                    =>  'Windows NT',
        'windows ce'                                 =>  'Windows CE',
        'windows 98|win98'                           =>  'Windows 98',
        'windows 95|win95'                           =>  'Windows 95',
        'win16'                                      =>  'Windows 3.11',
        'mac os x 10.1[^0-9]'                        =>  'Mac OS X Puma',
        'macintosh|mac os x'                         =>  'Mac OS X',
        'mac_powerpc'                                =>  'Mac OS 9',
        'linux'                                      =>  'Linux',
        'ubuntu'                                     =>  'Linux - Ubuntu',
        'iphone'                                     =>  'iPhone',
        'ipod'                                       =>  'iPod',
        'ipad'                                       =>  'iPad',
        'android'                                    =>  'Android',
        'blackberry'                                 =>  'BlackBerry',
        'webos'                                      =>  'Mobile',

        '(media center pc).([0-9]{1,2}\.[0-9]{1,2})'=>'Windows Media Center',
        '(win)([0-9]{1,2}\.[0-9x]{1,2})'=>'Windows',
        '(win)([0-9]{2})'=>'Windows',
        '(windows)([0-9x]{2})'=>'Windows',

        // Doesn't seem like these are necessary...not totally sure though..
        //'(winnt)([0-9]{1,2}\.[0-9]{1,2}){0,1}'=>'Windows NT',
        //'(windows nt)(([0-9]{1,2}\.[0-9]{1,2}){0,1})'=>'Windows NT', // fix by bg

        'Win 9x 4.90'=>'Windows ME',
        '(windows)([0-9]{1,2}\.[0-9]{1,2})'=>'Windows',
        'win32'=>'Windows',
        '(java)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,2})'=>'Java',
        '(Solaris)([0-9]{1,2}\.[0-9x]{1,2}){0,1}'=>'Solaris',
        'dos x86'=>'DOS',
        'Mac OS X'=>'Mac OS X',
        'Mac_PowerPC'=>'Macintosh PowerPC',
        '(mac|Macintosh)'=>'Mac OS',
        '(sunos)([0-9]{1,2}\.[0-9]{1,2}){0,1}'=>'SunOS',
        '(beos)([0-9]{1,2}\.[0-9]{1,2}){0,1}'=>'BeOS',
        '(risc os)([0-9]{1,2}\.[0-9]{1,2})'=>'RISC OS',
        'unix'=>'Unix',
        'os/2'=>'OS/2',
        'freebsd'=>'FreeBSD',
        'openbsd'=>'OpenBSD',
        'netbsd'=>'NetBSD',
        'irix'=>'IRIX',
        'plan9'=>'Plan9',
        'osf'=>'OSF',
        'aix'=>'AIX',
        'GNU Hurd'=>'GNU Hurd',
        '(fedora)'=>'Linux - Fedora',
        '(kubuntu)'=>'Linux - Kubuntu',
        '(ubuntu)'=>'Linux - Ubuntu',
        '(debian)'=>'Linux - Debian',
        '(CentOS)'=>'Linux - CentOS',
        '(Mandriva).([0-9]{1,3}(\.[0-9]{1,3})?(\.[0-9]{1,3})?)'=>'Linux - Mandriva',
        '(SUSE).([0-9]{1,3}(\.[0-9]{1,3})?(\.[0-9]{1,3})?)'=>'Linux - SUSE',
        '(Dropline)'=>'Linux - Slackware (Dropline GNOME)',
        '(ASPLinux)'=>'Linux - ASPLinux',
        '(Red Hat)'=>'Linux - Red Hat',
        // Loads of Linux machines will be detected as unix.
        // Actually, all of the linux machines I've checked have the 'X11' in the User Agent.
        //'X11'=>'Unix',
        '(linux)'=>'Linux',
        '(amigaos)([0-9]{1,2}\.[0-9]{1,2})'=>'AmigaOS',
        'amiga-aweb'=>'AmigaOS',
        'amiga'=>'Amiga',
        'AvantGo'=>'PalmOS',
        //'(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1}-([0-9]{1,2}) i([0-9]{1})86){1}'=>'Linux',
        //'(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1} i([0-9]{1}86)){1}'=>'Linux',
        //'(Linux)([0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3}(rel\.[0-9]{1,2}){0,1})'=>'Linux',
        '[0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,3})'=>'Linux',
        '(webtv)/([0-9]{1,2}\.[0-9]{1,2})'=>'WebTV',
        'Dreamcast'=>'Dreamcast OS',
        'GetRight'=>'Windows',
        'go!zilla'=>'Windows',
        'gozilla'=>'Windows',
        'gulliver'=>'Windows',
        'ia archiver'=>'Windows',
        'NetPositive'=>'Windows',
        'mass downloader'=>'Windows',
        'microsoft'=>'Windows',
        'offline explorer'=>'Windows',
        'teleport'=>'Windows',
        'web downloader'=>'Windows',
        'webcapture'=>'Windows',
        'webcollage'=>'Windows',
        'webcopier'=>'Windows',
        'webstripper'=>'Windows',
        'webzip'=>'Windows',
        'wget'=>'Windows',
        'Java'=>'Unknown',
        'flashget'=>'Windows',

        // delete next line if the script show not the right OS
        //'(PHP)/([0-9]{1,2}.[0-9]{1,2})'=>'PHP',
        'MS FrontPage'=>'Windows',
        '(msproxy)/([0-9]{1,2}.[0-9]{1,2})'=>'Windows',
        '(msie)([0-9]{1,2}.[0-9]{1,2})'=>'Windows',
        'libwww-perl'=>'Unix',
        'UP.Browser'=>'Windows CE',
        'NetAnts'=>'Windows',
    ];

    // https://github.com/ahmad-sa3d/php-useragent/blob/master/core/user_agent.php
    $arch_regex = '/\b(x86_64|x86-64|Win64|WOW64|x64|ia64|amd64|ppc64|sparc64|IRIX64)\b/ix';
    $arch = preg_match($arch_regex, $user_agent) ? '64' : '32';

    foreach ($os_array as $regex => $value) {
        if (preg_match('{\b('.$regex.')\b}i', $user_agent)) {
            return $value.' x'.$arch;
        }
    }

    return 'Unknown';
}

回答by OmniPotens

If you want to get all those information, you might want to read this:
http://php.net/manual/en/function.get-browser.php

如果您想获得所有这些信息，您可能需要阅读以下内容：http:
//php.net/manual/en/function.get-browser.php

You can run the sample code and you'll see how it works:

您可以运行示例代码，您将看到它是如何工作的：

<?php
echo $_SERVER['HTTP_USER_AGENT'] . "\n\n";

$browser = get_browser(null, true);
print_r($browser);
?>

The above example will output something similar to:

上面的例子将输出类似于：

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3

Array
(
    [browser_name_regex] => ^mozilla/5\.0 (windows; .; windows nt 5\.1; .*rv:.*) gecko/.* firefox/0\.9.*$
    [browser_name_pattern] => Mozilla/5.0 (Windows; ?; Windows NT 5.1; *rv:*) Gecko/* Firefox/0.9*
    [parent] => Firefox 0.9
    [platform] => WinXP
    [browser] => Firefox
    [version] => 0.9
    [majorver] => 0
    [minorver] => 9
    [cssversion] => 2
    [frames] => 1
    [iframes] => 1
    [tables] => 1
    [cookies] => 1
    [backgroundsounds] =>
    [vbscript] =>
    [javascript] => 1
    [javaapplets] => 1
    [activexcontrols] =>
    [cdf] =>
    [aol] =>
    [beta] => 1
    [win16] =>
    [crawler] =>
    [stripper] =>
    [wap] =>
    [netclr] =>
)

回答by antoni

If you want very few info like a class in your html for common browsers for instance, you could use:

例如，如果您想要很少的信息，例如常见浏览器的 html 中的类，您可以使用：

function get_browser()
{
    $browser = '';
    $ua = strtolower($_SERVER['HTTP_USER_AGENT']);
    if (preg_match('~(?:msie ?|trident.+?; ?rv: ?)(\d+)~', $ua, $matches)) $browser = 'ie ie'.$matches[1];
    elseif (preg_match('~(safari|chrome|firefox)~', $ua, $matches)) $browser = $matches[1];

    return $browser;
}

which will return 'safari' or 'firefox' or 'chrome', or 'ie ie8', 'ie ie9', 'ie ie10', 'ie ie11'.

它将返回“safari”或“firefox”或“chrome”，或“ie ie8”、“ie ie9”、“ie ie10”、“ie ie11”。

回答by antoni

You can look for this information in $_SERVER['HTTP_USER_AGENT'], but its format is free-form, not guaranteed to be sent, and could easily be altered by the user, whether for privacy or other reasons.

您可以在 中查找此信息$_SERVER['HTTP_USER_AGENT']，但其格式是自由格式，不保证会被发送，并且无论出于隐私还是其他原因，用户都可以轻松更改。

If you've not set the browsecapdirective, this will return a warning. To make sure it's set, you can retrieve the value using ini_getand see if it's set.

如果你没有设置browsecap指令，这将返回一个警告。为了确保它已设置，您可以使用检索值ini_get并查看它是否已设置。

if(ini_get("browscap")) {
    $browser = get_browser(null, true);
    $browser = get_browser($_SERVER['HTTP_USER_AGENT']);  
} 

As kbaexplained in his answer, your browser sends a lot of information to the server while loading a webpage. Most websites use these User-agentinformation to determine the visitor's operating system, browser and various information.

正如kba在他的回答中所解释的那样，您的浏览器在加载网页时会向服务器发送大量信息。大多数网站使用这些用户代理信息来确定访问者的操作系统、浏览器和各种信息。