bencode result for each library

Raw Sting:d4:infod6:lengthi364e4:name8:test.rare3:inti1548400939e4:listl5:UTF-83:GBKe6:string13:uTorrent/3130e

NexusPHP(benc.php)
Array
(
    [type] => dictionary
    [value] => Array
        (
            [info] => Array
                (
                    [type] => dictionary
                    [value] => Array
                        (
                            [length] => Array
                                (
                                    [type] => integer
                                    [value] => 364
                                    [strlen] => 5
                                    [string] => i364e
                                )

                            [name] => Array
                                (
                                    [type] => string
                                    [value] => test.rar
                                    [strlen] => 10
                                    [string] => 8:test.rar
                                )

                        )

                    [strlen] => 31
                    [string] => d6:lengthi364e4:name8:test.rare
                )

            [int] => Array
                (
                    [type] => integer
                    [value] => 1548400939
                    [strlen] => 12
                    [string] => i1548400939e
                )

            [list] => Array
                (
                    [type] => list
                    [value] => Array
                        (
                            [0] => Array
                                (
                                    [type] => string
                                    [value] => UTF-8
                                    [strlen] => 7
                                    [string] => 5:UTF-8
                                )

                            [1] => Array
                                (
                                    [type] => string
                                    [value] => GBK
                                    [strlen] => 5
                                    [string] => 3:GBK
                                )

                        )

                    [strlen] => 14
                    [string] => l5:UTF-83:GBKe
                )

            [string] => Array
                (
                    [type] => string
                    [value] => uTorrent/3130
                    [strlen] => 16
                    [string] => 13:uTorrent/3130
                )

        )

    [strlen] => 100
    [string] => d4:infod6:lengthi364e4:name8:test.rare3:inti1548400939e4:listl5:UTF-83:GBKe6:string13:uTorrent/3130e
)

RidPT(Bencode.php)
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

sandfoxme/bencode
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

rych/bencode
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

dsmithhayes/bencode
Array
(
    [info] => Array
        (
        )

)

s9e/Bencode
ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [info] => ArrayObject Object
                (
                    [storage:ArrayObject:private] => Array
                        (
                            [length] => 364
                            [name] => test.rar
                        )

                )

            [int] => 1548400939
            [list] => Array
                (
                    [0] => UTF-8
                    [1] => GBK
                )

            [string] => uTorrent/3130
        )

)

nrk/bencoder
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

pure-bencode/pure-bencode
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

ppokatilo/bencode
stdClass Object
(
    [info] => stdClass Object
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)

akatsuki/bencode
Array
(
    [info] => Array
        (
            [length] => 364
            [name] => test.rar
        )

    [int] => 1548400939
    [list] => Array
        (
            [0] => UTF-8
            [1] => GBK
        )

    [string] => uTorrent/3130
)