Please wrap the output also in <code> tags, it's not readable

anyway this part

  'par_global' => {
                                'err' => '99',
                                'err' => '20',
                                'FILE_READ' => 'fileB',
                           },
[download]

doesn't make sense, b/c you can only have one key "err" , cause hash-keys are unique!

update

honestly I doubt the demonstrated output is really from your code, this doesn't make sense.