If older than 20 days delet!

[Anon]

I wrote a script which sends postcards. The script saves every card in a knew file. Know I want, that this script searchs for files which are older than 20 days and deletes them. How could I do that? I would try to check all postcardfiles in a folder for their last modified date and than I would check, if there are cards which are older than 20 days, which would be than deletet. But because I new in PHP (since one week) I don't know how to do this.

[[deleted]]

Manuals are a good start:

To get all filenames in a directory:
http://www.php.net/manual/en/function.readdir.php (also has examples for recursive functions that can also read subdirectories)

To get the last modified date of a file:
http://www.php.net/manual/en/function.filemtime.php

And to delete a file:
http://www.php.net/manual/en/function.unlink.php

Tip: always read the annotations in the PHP manual, lots and lots of wisdom and examples there!