Simply build a function that returns the variables. Define values inside a function to make them inaccessible from outside. Something like this :
#!/usr/local/bin/perl
use strict;
use warnings;
package MyData;
sub getData {
my $data = {
'test' => 'yes',
'key' => 'value',
'some' => 'thing',
'array' => [ 1, 2, 3 ],
};
my $key = shift;
defined $data->{$key}
? return $data->{$key}
: return;
}
package main;
foreach my $testcase (qw(test key some bork)) {
my $value = MyData::getData($testcase);
if ($value) {
print "Data for $testcase : $value \n";
} else {
print "No such data : $testcase .\n";
}
}
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