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Type:
Problem report
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Resolution: Unresolved
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Priority:
Trivial
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None
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Affects Version/s: 7.4.5
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Component/s: Frontend (F)
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None
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Environment:Rocky 9, mariadb
Steps to reproduce:
- Add a topitems widget
- In either the Host groups or Hosts configuration form field, set it to reference another widget
- Add an item pattern
- In the Advanced configuration of the main widget form, in the Host ordering section, change the toggle to 'Item Value' and start entering a pattern in the pattern box. You will see a console error 500.
See screenshot:
Here is the output of the web error logs when this happens:{}
[10-Jan-2026 03:55:43 UTC] PHP Warning: foreach() argument must be of type array|object, false given in /usr/share/zabbix/ui/include/hostgroups.inc.php on line 57 [10-Jan-2026 03:55:43 UTC] PHP Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, false given in /usr/share/zabbix/ui/include/hostgroups.inc.php:71 Stack trace: #0 /usr/share/zabbix/ui/include/hostgroups.inc.php(71): array_keys() #1 /usr/share/zabbix/ui/jsrpc.php(797): getSubGroups() #2 {main} thrown in /usr/share/zabbix/ui/include/hostgroups.inc.php on line 71
