My interpretation is that Dumper is dumping you a string that was produced from the stringization of a hash reference. Note the single-quotes surrounding the body of the dumped output and the embedded newline. 

Win8 Strawberry 5.8.9.5 (32)  Fri 05/07/2021 19:46:25
C:\@Work\Perl\monks
>perl -Mwarnings

use Data::Dumper;

my $hr = { qw(one uno  two dos) };

my $request = "$hr\n"; # stringize a hash ref, end in newline

print Dumper $request;
print Dumper %$request;

^Z
$VAR1 = 'HASH(0x333824)
';

[download]
(Update: So I'd say that the unkosher '(' comes from the opening paren in 'HTTP::Request=HASH(0x1c23960)'.)

As to the 

print Dumper %$request;

$VAR1 = '4/8
';

[download]
part, I can't reproduce it, but note that enabling strictures throws an error for the %$request expression (do you have strict enabled?), and that the following stringization gives the number of hash "bins" used versus those currently allotted for the hash: 
Win8 Strawberry 5.8.9.5 (32)  Fri 05/07/2021 20:03:42
C:\@Work\Perl\monks
>perl -Mstrict -Mwarnings

use Data::Dumper;

my $hr = { qw(one uno  two dos) };

my $bins = '' . %$hr;

print Dumper $bins;

^Z
$VAR1 = '2/8';

[download]
(Update: I.e., '2/8' is a feature of the stringization of hashes and has nothing to do with Data::Dumper: 
Win8 Strawberry 5.8.9.5 (32)  Fri 05/07/2021 20:15:42
C:\@Work\Perl\monks
>perl -Mstrict -Mwarnings

my %hash = qw(one uno  two dos);

print '' . %hash;

^Z
2/8

[download]
Note that details of this behavior changed somewhere between versions 5.8 and 5.30.)

Give a man a fish:  <%-{-{-{-<

In reply to Re: Data::Dumper output by AnomalousMonk
in thread Data::Dumper output by Bod

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