This hook gives modules a chance to easily hook into
PHP's register_shutdown_function()
functionality.
Code that you put in a phorum_shutdown hook will be run after
running a Phorum script finishes. This hook can be considered
an expert hook. Only use it if you really need it and if you
are aware of implementation details of PHP's shutdown
functionality.
Call time:
After running a Phorum script finishes.
Hook input:
No input.
Hook output:
No output.