What you get is not an error, but a warning.

To get rid of it you could either properly initialize the offending variable or turn the warnings off (get rid of "use warnings" or use a lexical "no warnings").

Apart from that you should not use lexicals in a global way.

When you do 

sub ownertbl {
    ( $sortby, $ascdesc, $letter ) = @_;

[download]
You are referencing (and possibly changing!) variables that are defined somewhere else.

Instead do it like this: 

sub ownertbl {
 my ( $sortby, $ascdesc, $letter ) = @_;

[download]
Now (notice the "my"!) you have variables that are local to the sub.

In reply to Re: passing variables to a sub by morgon
in thread passing variables to a sub by ag4ve

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