code: protected function isMounted($strFolder)
  	{
  		if ($strFolder == '')
  		{
  			return false;
  		}
  
  		if (empty($this->arrFilemounts))
  		{
  			return true;
  		}
  
  		$path = $strFolder;
  
  		while (\is_array($this->arrFilemounts) && substr_count($path, '/') > 0)
  		{
  			if (\in_array($path, $this->arrFilemounts))
  			{
  				return true;
  			}
  
  			$path = \dirname($path);
  		}
  
  		return false;
  	}
docs: Return true if the current folder is mounted
  
  @param string $strFolder
  
  @return boolean