This class encodes and decodes data using the zbase32 algorithm.
It can take a string of binary data and encode it into case insensitive data using zbase32.
The class can also do the opposite, i.e. decode previously encoded base32 data to return the original binary data.
The encoding and decoding methods are available as functions within a namespace for use under PHP 5.3 or later.
With namespaces, it is not necessary to use the fiction of classes to hide names from the global scope.