Version 1.8.0:
. SecurityFix: Exploit Database: phpfm v1.7.9 - Authentication type juggling
https://www.exploit-db.com/exploits/51594
Many thanks to Guillaume Duval, https://github.com/MisterDuval
who contacted me, and provided the fixed code.
. BugFix: Several other small adjustments for proper PHP8 support.