### ✅ Gruppiertes Array (Werte [5] = 0 ignoriert)
<pre style="">Array
(
    [1] => Array
        (
            [0] => Array
                (
                    [0] => 1
                    [1] => isl
                    [2] => 1
                    [3] => 0
                    [4] => 0
                    [5] => 1
                )

        )

    [2] => Array
        (
            [1] => Array
                (
                    [0] => 2
                    [1] => rag
                    [2] => 1
                    [3] => 0
                    [4] => 0
                    [5] => 2
                )

        )

    [3] => Array
        (
            [3] => Array
                (
                    [0] => 4
                    [1] => exten
                    [2] => 1
                    [3] => 0
                    [4] => 0
                    [5] => 3
                )

        )

)
</pre>