Ahem 
use constant FOO => "a string";

sub constant_name {
  return (grep { $_[0] eq (\&{$_})->() } keys %constant::declared)[0]
          =~ /::(.*?)\z/;
}

print constant_name(FOO);

[download]
So it can be done, but don't do it like that, best listen to BrowserUk and use a hash map instead.
HTH

_________
broquaint

In reply to Re: The name of a constant by broquaint
in thread The name of a constant by Kjetil

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