Browser::setVersion PHP Method

    public function setVersion($version)
    {
        $this->_version = preg_replace('/[^0-9,.,a-z,A-Z-]/', '', $version);
    }

 /**
  * Determine if the browser is Android.
  *
  * @return bool
  */
 public static function checkBrowserAndroid()
 {
     // Navigator
     if (stripos(self::$userAgentString, 'Android') !== false) {
         if (preg_match('/Version\\/([\\d\\.]*)/i', self::$userAgentString, $matches)) {
             self::$browser->setVersion($matches[1]);
         } else {
             self::$browser->setVersion(Browser::VERSION_UNKNOWN);
         }
         self::$browser->setName(Browser::NAVIGATOR);
         return true;
     }
     return false;
 }