This doesn't answer your question, but is rather an attempt to help you do what it looks like you're after. I think what you are looking for is:

$ppp = defined $porter ? 'defined ' : 'undefined';

[download]

If you have perl 5.10 or better:

use 5.10;
$ppp = $porter;
$ppp //= 0;

[download]
Tommy
A mistake can be valuable or costly, depending on how faithfully you pursue correction

In reply to Re: Why my variable is not 0 ? by Tommy
in thread Why my variable is not 0 ? by pcouderc

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