Some early stage testing of php-8.2.0 (release version) with cacti 1.2.x (up to date as of now) is showing poller errors:

06/Jan/2023 00:40:28 - CMDPHP PHP ERROR Backtrace: (/cmd.php[377]:ping_and_reindex_check(), /cmd.php[754]:update_system_mibs(), /cmd.php[592]:open_snmp_session(), /cmd.php[555]:cacti_snmp_session(), /lib/snmp.php[87]:CactiErrorHandler())
06/Jan/2023 00:40:28 - ERROR PHP DEPRECATED: Creation of dynamic property phpsnmp\SNMP::$bulk_walk_size is deprecated in file: /var/www/cacti/htdocs/lib/snmp.php on line: 87
06/Jan/2023 00:40:28 - CMDPHP PHP ERROR Backtrace: (/cmd.php[377]:ping_and_reindex_check(), /cmd.php[754]:update_system_mibs(), /cmd.php[592]:open_snmp_session(), /cmd.php[555]:cacti_snmp_session(), /lib/snmp.php[87]:CactiErrorHandler())
06/Jan/2023 00:40:28 - ERROR PHP DEPRECATED: Creation of dynamic property phpsnmp\SNMP::$bulk_walk_size is deprecated in file: /var/www/cacti/htdocs/lib/snmp.php on line: 87
06/Jan/2023 00:40:27 - CMDPHP PHP ERROR Backtrace: (/cmd.php[377]:ping_and_reindex_check(), /cmd.php[754]:update_system_mibs(), /cmd.php[592]:open_snmp_session(), /cmd.php[555]:cacti_snmp_session(), /lib/snmp.php[87]:CactiErrorHandler())
06/Jan/2023 00:40:27 - ERROR PHP DEPRECATED: Creation of dynamic property phpsnmp\SNMP::$bulk_walk_size is deprecated in file: /var/www/cacti/htdocs/lib/snmp.php on line: 87

This is on Gentoo x86_64 and was built with net-snmp-5.9.3 .