Have you looked at line 22? 
# Get vars from second line
my @vars = @{ $csv->getline($csvfh) };

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When does getline return an undef? Your input probably contains only one line, already consumed by $columnNames.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Export CSV v2 by choroba
in thread Export CSV v2 by Perl3r

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