HTTP_USER_AGENT in PHP says Mozilla for IE

Question

I need to be able to specify between IE 11 and Firefox in a PHP script. I have the following function. However, in IE it returns Mozilla. Is there another way to approach this to distinquish between Firefox and IE?

function browser() {
 $ua = strtolower($_SERVER['HTTP_USER_AGENT']);
 // you can add different browsers with the same way ..
 if(preg_match('/(chromium)[ \/]([\w.]+)/', $ua))
         $browser = 'chromium';
 elseif(preg_match('/(chrome)[ \/]([\w.]+)/', $ua))
         $browser = 'chrome';
 elseif(preg_match('/(safari)[ \/]([\w.]+)/', $ua))
         $browser = 'safari';
 elseif(preg_match('/(opera)[ \/]([\w.]+)/', $ua))
         $browser = 'opera';
 elseif(preg_match('/(msie)[ \/]([\w.]+)/', $ua))
         $browser = 'msie';
 elseif(preg_match('/(mozilla)[ \/]([\w.]+)/', $ua))
         $browser = 'mozilla';

 preg_match('/('.$browser.')[ \/]([\w]+)/', $ua, $version);
 return array($browser,$version[2],'name'=>$browser,'version'=>$version[2]);
}

Thanks!

http://stackoverflow.com/questions/18070154/get-operating-system-info-with-php/18070424#18070424 could be of help. — Funk Forty Niner, Feb 03 '17 at 15:37
Also http://stackoverflow.com/questions/1114254/why-do-all-browsers-user-agents-start-with-mozilla — apokryfos, Feb 03 '17 at 15:37
To answer your question. To detect Firefox look for the word `firefox` — apokryfos, Feb 03 '17 at 15:38

score 0 · Answer 1 · answered Feb 03 '17 at 21:32

Internet Explorer 11 didn't include an "MSIE" string, because they didn't want people to assume that it had the same problems as older versions of IE.

You could add lines like these:

elseif(preg_match('/(trident)[ \/]([\w.]+)/', $ua))
    $browser = 'msie';
elseif(preg_match('/(firefox)[ \/]([\w.]+)/', $ua))
    $browser = 'firefox';

Every web browser will contain the word "Mozilla" in its user agent string (it dates back to the Netscape era.)

HTTP_USER_AGENT in PHP says Mozilla for IE

1 Answers1