The small class for file and image loading

Simple class for loading files and images to server by PUT request

interface IFileClass
{
public function __construct($files_directory);
public function saveImage($imageName, $size = 7);
public function saveDocument($documentName, $size = 17);
public function deleteFile($fileName);
public function getRealName($filename);
public function setFileSizeLimit($limit = 5);
}