Error in Problems

[JulioQc]

Hi,

I get this error when I navigate to Problems:

preg_match(): Unknown modifier '0' [jsrpc.php:90 → CScreenProblem->get() → getTriggerDependencies() → CMacrosResolverHelper::resolveTriggerNames() → CMacrosResolver->resolveTriggerNames() → CMacrosResolver->resolveTriggerExpressions() → CMacrosResolverGeneral->getUserMacros() → CMacrosResolverGeneral->getHostUserMacros() → preg_match() in include/classes/macros/CMacrosResolverGeneral.php:1340]

Is there a way for me to track it down to the faulty item/template/trigger that causes this? Seems like a macro but which one?

Thank you!

[cyber]

And your environment is... ? versions etc...

[JulioQc]

Ya sorry that's Zabbix 5.4.10 on Ubuntu 20.04 and MySQL 8.0.28

[cyber]

PHP7? 8? If by accident its 8, then its not supported...

[JulioQc]

True, I get 7.4.3 for php -v

[JulioQc]

Any ideas how to track this to the specific template/host/item?
Issue persist after going to Zabbix 6.2.0

[JulioQc]

Ok found how to track after noticing the error comes and goes from the dashboard: go to problems, filter to history instead of recent/problems, narrow the time frame until you see the PHP error show up and only a few hosts are listed (I had to narrow to a single minute), filter out host by host until you find which one triggers the alert.

From there, check your macro values for issues. I my case:

Macro: {$IFCONTROL:regex:"^(Gi[1-4]\/0\/(1[3-9]|[2-3][0-9]|4[0-8]))$"}
Value: 0

Find the issue. If regex is true, value is 0 and no error. If regex is false, value is 1 (default from template {$IFCONTROL}) but PHP error is shown.
The whole thing works to exclude some "unimportant interfaces" so I believe this is only cosmetic.

I hope this gets resolve but I doubt it will without proper support ticket. I hope it helps someone else chasing this issue