wie man parent-array-index von mehrdimensionalen Arrays in php

Ich habe ein array $arr.

wenn ich drucken zeigt es die Ergebnisse wie folgt.

Array
(
    [0] => Array
        (
            [name] => homeandgarden-Control Type
            [1] => Array
                (
                    [0] => product
                )

        )

    [1] => Array
        (
            [name] => homeandgarden-Depth
            [1] => Array
                (
                    [0] => product
                )

        )

    [2] => Array
        (
            [name] => homeandgarden-Height
            [1] => Array
                (
                    [0] => product
                )

        )

    [3] => Array
        (
            [name] => homeandgarden-Load Type
            [1] => Array
                (
                    [0] => product
                )

        )

    [4] => Array
        (
            [name] => homeandgarden-Machine Type
            [1] => Array
                (
                    [0] => product
                )

        )

    [5] => Array
        (
            [name] => homeandgarden-Type
            [1] => Array
                (
                    [0] => product
                )

        )

    [6] => Array
        (
            [name] => homeandgarden-Width
            [1] => Array
                (
                    [0] => product
                )

        )

    [7] => Array
        (
            [name] => computer & ele
            [label] => 
            [singular_label] => 
            [hierarchical] => 1
            [show_ui] => 1
            [query_var] => 1
            [rewrite] => 1
            [rewrite_slug] => 
            [0] => Array
                (
                    [search_items] => 
                    [popular_items] => 
                    [all_items] => 
                    [parent_item] => 
                    [parent_item_colon] => 
                    [edit_item] => 
                    [update_item] => 
                    [add_new_item] => 
                    [new_item_name] => 
                    [separate_items_with_commas] => 
                    [add_or_remove_items] => 
                    [choose_from_most_used] => 
                )

            [1] => Array
                (
                    [0] => product
                )

        )

    [8] => Array
        (
            [name] => computer
            [label] => 
            [singular_label] => 
            [hierarchical] => 1
            [show_ui] => 1
            [query_var] => 1
            [rewrite] => 1
            [rewrite_slug] => 
            [0] => Array
                (
                    [search_items] => 
                    [popular_items] => 
                    [all_items] => 
                    [parent_item] => 
                    [parent_item_colon] => 
                    [edit_item] => 
                    [update_item] => 
                    [add_new_item] => 
                    [new_item_name] => 
                    [separate_items_with_commas] => 
                    [add_or_remove_items] => 
                    [choose_from_most_used] => 
                )

            [1] => Array
                (
                    [0] => product
                )

        )

    [9] => Array
        (
            [name] => homeandgardenairconditioner-Type
            [label] => 
            [singular_label] => 
            [hierarchical] => 1
            [show_ui] => 1
            [query_var] => 1
            [rewrite] => 1
            [rewrite_slug] => 
            [0] => Array
                (
                    [search_items] => 
                    [popular_items] => 
                    [all_items] => 
                    [parent_item] => 
                    [parent_item_colon] => 
                    [edit_item] => 
                    [update_item] => 
                    [add_new_item] => 
                    [new_item_name] => 
                    [separate_items_with_commas] => 
                    [add_or_remove_items] => 
                    [choose_from_most_used] => 
                )

            [1] => Array
                (
                    [0] => product
                )

        )

    [10] => Array
        (
            [name] => homeandgardendishwasher-Control Type
            [label] => 
            [singular_label] => 
            [hierarchical] => 1
            [show_ui] => 1
            [query_var] => 1
            [rewrite] => 1
            [rewrite_slug] => 
            [0] => Array
                (
                    [search_items] => 
                    [popular_items] => 
                    [all_items] => 
                    [parent_item] => 
                    [parent_item_colon] => 
                    [edit_item] => 
                    [update_item] => 
                    [add_new_item] => 
                    [new_item_name] => 
                    [separate_items_with_commas] => 
                    [add_or_remove_items] => 
                    [choose_from_most_used] => 
                )

            [1] => Array
                (
                    [0] => product
                )

        )
)

und ich habe eine variable $Kateg.Zum Beispiel $Kateg = "homeandgardenairconditioner-Typ"
dann möchte ich wissen, der index der übergeordneten array, dessen "Namen" ist "homeandgardenairconditioner-Typ"

ich.e --- o/p 9

wie man diesen index. Bitte helfen Sie mir

Dank