Re^7: $dbh could not be passed to function unless another variable is also passed

in reply to Re^6: $dbh could not be passed to function unless another variable is also passed
in thread $dbh could not be passed to function unless another variable is also passed

I should quote only strings?

Comment on Re^7: $dbh could not be passed to function unless another variable is also passed

In Section Seekers of Perl Wisdom