Is it possible to invoke a function when a cron process is killed from the command line (via Ctrl+c) or with the kill command?
I have tried register_shutdown_function(), but it doesn't seem to be invoked when the script is killed, but does get invoked when the script ends normally.
I am trying to log the result to a file and update a database value when a cron instance is killed automatically (ie. has been running too long).