방문자의 브라우저와 OS등을 가져 오는 클레스

$_SERVER['HTTP_USER_AGENT'] 를 간단히 분석합니다. 깔끔하네요.

User Agent string is a characteristic identification text which  is submitted by web browsers, bots and other applications which use World Wide Web.

In PHP you can get this from $_SERVER['HTTP_USER_AGENT'] variable.

Using this variable you cannot identify a web browser with 100% accuracy as this string might be quite easily altered by a web browser user. However modifying UAS is not something most people do 

The code I post here is not perfect, but it can detect browser and operating system in most cases.

I have tested it against over 1000 User Agent Strings and it successfully detected more than 99%.

Here’s a list of some of the user agents this class can detect:

Firefox, Opera, Chrome, Internet Explorer (MSIE), Konqueror, Opera, boxee, Mediapartners-Google, Googlebot, Wget, W3C_Validator, Netscape, Yahoo! Slurp, Safari, Songbird, Xiino, ACS-NF, abot, Ace Explorer, ActiveBookmark, AIM, amaya, Iceweasel, AmigaVoyager, Arexx, ANTFresco, aolbrowser, Astra, Avantgo, Crazy, curl, Dillo, ELinks, FlashGet, IEMobile, ia_archiver, iCab, Links, Lynx, MobileExplorer, Blazer, NetFront,Mozilla, WebPro, ANTGalio, heritrix, iCab, ABrowse, OmniWeb, lolifox, Navigator, SeaMonkey, Camino, Shiira, Sunrise, Flock, Minimo, K-Meleon.

It can even detect Internet Explorer wrappers (application which use Internet Explorer ActiveX) like

Sleipnir, Avant Browser, MyIE2, Embedded Web Browsser, TheWorld, Maxthon or Browzar. You can find this information in $res['wrapper'];

If user agent is detected as bot, $res['bot'] will be set to true.

The license, as usual, is MIT, so you can use for private & commercial projects.

include 'UserAgent.php';
$userAgent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7 (.NET CLR 3.5.30729)';
$u = new UserAgent();
$res = $u->detect($userAgent);
print_r($res);

OutPut
Array ( [browser] => Array ( [name] => Firefox [version] => 3.5.7 ) [platform] => Array ( [name] => Windows [version] => NT 5.1 ) [system] => Array ( [name] => Windows [version] => NT 5.1 ) [engine] => Array ( [name] => Gecko [version] => 20091221 ) [.net] => Array ( [name] => .NET [version] => CLR 3.5.30729 ) )