I want to check if more than one of the many GetOptions options were used, and I want to know which ones were used. More than one is not allowed. For a quick check, I tried with only three options. In the code below, which does NOT work, only the "two" should match.
use strict;

my $one = 0;
my $two = 1;
my $three = 0;

my @strings = qw (one two three);
my @optionsToCheck = ($one, $two, $three);

foreach my $string (@strings) {
    print "Option $string was used\n" if ( ${"$string"} );
}

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I tried different variations, but could not seem to get it. I could use a key/value hash, but that seems overkill. Besides, if I added or took away options, I'd have to remember to change the hash, too. I suspect Perl has a simple answer, but I cannot see it.

Thanks

In reply to How can I turn a string into a variable name? by mnooning

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