public function getPlatformVersion() { 
		if ($this->_platformVersion === self::PLATFORM_UNKNOWN ) 
		{
			$this->_platformVersion = $this->_platform;
		}
		return $this->_platformVersion; 
	}
public function getPlatformVersion() { 
		if ($this->_platformVersion === self::PLATFORM_UNKNOWN ) 
		{
			$this->_platformVersion = $this->_platform;
		}
		return $this->_platformVersion; 
	}
public function getPlatformVersion ( ) { if ( $ this -> _platformVersion === self :: PLATFORM_UNKNOWN ) { $ this -> _platformVersion = $ this -> _platform ; } return $ this -> _platformVersion ; }
The name of the platform.  All return types are from the class contants
Fallback platformVersion with platform if platformVersion unknown
@return string Platformversion of the browser
The name of the platform . All return types are from the class contants Fallback platformVersion with platform if platformVersion unknown