Looking for solution for zabbix to get fresh value (not from db) for $itemid via command line interface.
Force Zabbix server or proxy to poll a new value from a item.
php command $itemid
response: value
Forcing Zabbix server or proxy to poll a value for a passive-like item is not supported at this time. There is a feature request to add such a capability: https://support.zabbix.com/browse/ZBXNEXT-473 .