Problem using an array in a template

[Sven]

I have the following 'print_r' from a variable:

Array
(
    [file] => CML-1-1001.CNC3Replay
    [size] => 246 KB
    [name] => Automatch Battle: LowLayer R0B0TIK 
    [desc] => Keine Spielbeschreibung
    [mapname] => Small Town USA
    [ini] => Array
        (
            [mapfilename] => data/maps/official/map_mp_2_black5
            [gametype] => Online, Ranked, 1 vs. 1
            [gamespeed] => 100%
            [startcash] => 10000$
            [voip] => Ja
            [bc] => Ja
            [crates] => Nein
            [players] => Array
                (
                    [1] => Array
                        (
                            [playertype] => Spieler
                            [playername] => LowLayer
                            [color] => Orange
                            [faction] => Zuf?llig
                            [mappos] => Zuf?llig
                            [team] => 1
                            [clan] => 
                        )

                    [2] => Array
                        (
                            [playertype] => Spieler
                            [playername] => R0B0TIK
                            [color] => Rot
                            [faction] => GDI
                            [mappos] => Zuf?llig
                            [team] => 2
                            [clan] => 
                        )

                )

            [matchtype] => Automatch
        )

    [version] => 1.9
)

The array can either be as a 'sub' array from $attachment --> $attachment['replay'] or a single array $replay.

Now, in the template, I'd like to read the array but it won't work.
What's already working is

<if condition="$attachment['replay']">...</if>

What's not working, for example:

<if condition="$attachment['replay']">$attachment[replay][name]</if>

Nor does, used as a 'stand alone' array $replay, this work:

<if condition="$attachment['replay']">$replay[name]</if>

Could someone please tell me the correct syntax?