It would be easier to have a static API to use. Something like this:
use BrowserDetector\BrowserDetector;
$browser = BrowserDetector::getBrowser();
$os = BrowserDetector::getOs();
$device = BrowserDetector::getDevice();
$language = BrowserDetector::getLanguage();
$scriptedAgent = BrowserDetector::getScriptedAgent();
BrowserDetector::isScriptedAgent();
BrowserDetector::isChromeFrame();
BrowserDetector::isWebkit();
BrowserDetector::isFacebookWebView();
BrowserDetector::isTwitterWebView();
BrowserDetector::isCompatibilityMode();