Are you sure the assignment to $storage_cache['ddos-storage'] is correct as snmpwalk_cache_oid($devi...AIN-MIB', 'datadomain') seems to always return null.
This check looks for function or method calls that always return null and whose
return value is assigned to a variable.
librenms /
librenms
acl
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.