Let's say you want to create a hash that has two (or more) keys, like this. In this example, name_key is below employee_key.

'employee_key' {
                 'name_key' => 'John Doe',
               }

Create the multidimensional keys and value.

my %hash = ( 'employee_key' => { 'name_key' => 'John Doe' } );

Or like this.

my $hash{employee_key}->{name_key} = "John Doe";

Dumper can be used to print the hash.

print Dumper \%hash;

Which will produce the following.

$VAR1 = {
          'employee_key' => {
                              'name_key' => 'Jane Doe'
                            }
        };

Print name_key.

print $hash{employee_key}->{name_key};

Which will produce the following.

John Doe