phpMyID fork
I don't know anyone else who is using this little script but I do, and found it didn't work anymore when I migrated to a server with a more advanced php version.
There are a few other forks in github but none took care of the calls to session_is_registered function, which has been deprecated as per 5.4. Hence, if you've got this sort of errors:
PHP Fatal error: Call to undefined function session_is_registered() in /[...]/html/MyID.php on line 1344
my fork will help you.
Other than that, I haven't looked at anything else O:-)