#!perl

my $x = 'outer';
{
  my $x = $x;    # new $x, copy value from old $x
  print "$x\n";
  $x = 'inner';
  print "$x\n";
}
print "$x\n";

__END__


##</code><code>##

my %HoH;
%HoH = (
  yadda1 => {
     key1 => "value1",
     key2 => &GetValue, # returns date string
     key3 => &Compare($var1,$HoH{yadda1}{key2}),
  },
  yadda2 => {
     key1 => "value1",
     key2 => &GetValue, # returns date string
     key3 => &Compare($var1,$HoH{yadda2}{key2}),
  },
);

##</code><code>##

my %HoH = ( key1 => 'first' );
%HoH = (
  key1 => 'second',
  key2 => $HoH{key1},
);

##</code><code>##

my $date_string = &GetValue;
my $comparison = &Compare($var1, $date_string);
%HoH = (
  yadda1 => {
     key1 => "value1",
     key2 => $date_string,
     key3 => $comparison,
  },
  yadda2 => {
     key1 => "value1",
     key2 => $date_string
     key3 => $comparison,
  },
);