# in my.conf file
FOO   'this'

# in my script
use strict;
use Config::Simple;
use vars qw($FOO);
Config::Simple->import_from("my.conf");
# the following works fine
print "$FOO\n";

##</code><code>##

# in my.conf file
FOO   'this', 'that'

# in my script
use strict;
use Config::Simple;
use vars qw(@FOO);
Config::Simple->import_from("my.conf");
# the following prints nothing at all
for (@FOO) {
  print "$_\n";
}

# however
use vars qw($FOO);
Config::Simple->import_from("my.conf");
# the following works fine
for (@$FOO) {
  print "$_\n";
}

# however, if I provide only one value for FOO in my.conf
# in my.conf file
FOO   'this'

# the following croaks
for (@$FOO) {
  print "$_\n";
}

Can't use string ("this") as an ARRAY ref while "strict refs" 
in use at ./test.pl line 41, <FH> line 1.