You can use this module to decode form and query information, including file uploads, as well as cookies in a very simple manner; you need not concern yourself with the actual details behind the decoding process.
Here are the changes for this version:
Bugs in url_encode and url_decode have been fixed: they now correctly encode and decode data that was previously treated incorrectly.
Here are the changes for the previous version, 2.001:
This is just an emergency release that fixes the most urgent security need.
See the CHANGES file for full history.