Aha! The problem there is that the
$ref lives within the lexical scope of the
while loop in the
bar() sub. So once the
while loop exits,
$ref is no longer in scope. Even if it were declared about the
while loop it would fall out of scope when
bar() exits. What you probably intended was something like this
sub foo {
...
## get $ref back from bar()
my($ref, %locations) = &bar($dbh);
...
my $location_text = $locations{$ref->{'location'}};
}
sub bar {
...
my $ref;
while ($ref = $sth->fetchrow_hashref())
{
my $id = $ref->{'id'};
my $location = $ref->{'location'};
$locations{$id} = $location;
}
$sth->finish;
## return $ref back to caller
return $ref, %locations;
}
However now
$ref only contains the hash ref from the last iteration of the
while loop, or is that the desired result?
HTH
_________
broquaint