use strict;
use warnings;

my $hashref;
$hashref->{'globalkey'}->{'key2'}->{'key3'}->{'key4'}='ARRAY VALUE';
$hashref->{'globalkey'}->{'key2'}->{'key3'}->{'key4'}->{'key5'}='ARRAY VALUE';
$hashref->{'globalkey'}->{'key2'}->{'key3'}->{'key4'}->{'key5'}->{'any arbitrary number of keys'}='ARRAY VALUE';
__END__
Can't use string ("ARRAY VALUE") as a HASH ref while "strict refs" in use at - line 6.