our $showPUV declares a package global, and my $showPUV declares a lexical variable. You've got two entirely different variables called $showPUV, which naturally leads to very confusing results. You certainly shouldn't be declaring package globals inside a subroutine; that's just begging for trouble.

Check out Coping with Scoping.

In reply to Re: problem with global variables going out of scope by friedo
in thread problem with global variables going out of scope by Kelly Grant

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