Squid is a popular HTTP proxy and caching program. It caches the contents of remote Web sites in local files to avoid the overhead of fetching those contents repeatedly.
This class can retrieving the information about the contents of cached remote resources, directly from PHP.
This class can be used to parse cache files stored by the Squid HTTP caching and proxy program.
It can read and parse a given Squid cache to retrieve several details to be available through class variables, such as: the cached URL, SHA1 and MD5 hash values, size and contents of the cached data, cache file creation and last modification dates.