This class can be used to retrieve information about files and directories. It can: - Retrieve an array with the list files in a given directory with several details like the file names, file sizes, last access date, last modified date, etc. - Optionally traverse the given directory recursively to list files contained in sub-directories - Filter the listing by file name extension, MIME type, last modified and last accessed dates. - Filter a listing with additional criteria to create a more restricted listing - Sort the retrieved listing - Determine the most recently changed file - Calculate the size of the files in a given directory listing - Retrieve the size, last modified and last access data, permissions, owner and MIME type of a file in in a human readable format