How to change the key of an array?

Question

PHP

There is an array

Array
(
    [0] => Array
        (
            [dimensions] => Array
                (
                    [0] => Array
                        (
                            [id] => 2021-09
                            [name] => 
                        )

                    [1] => Array
                        (
                            [id] => 266339626
                            [name] => Профессиональная отвертка с насадками 5 в 1 для ремонта сотовых телефонов, синяя
                        )

                )

            [metrics] => Array
                (
                    [0] => 0
                )

        )

    [1] => Array
        (
            [dimensions] => Array
                (
                    [0] => Array
                        (
                            [id] => 2021-09
                            [name] => 
                        )

                    [1] => Array
                        (
                            [id] => 266818422
                            [name] => Профессиональная отвертка с насадками 5 в 1 для ремонта сотовых телефонов, фиолетовая
                        )

                )

            [metrics] => Array
                (
                    [0] => 0
                )

        )

)

How to substitute id in the array key to get it like this?

Array
(
    [266339626] => Array
        (
            [dimensions] => Array
                (
                    [0] => Array
                        (
                            [id] => 2021-09
                            [name] => 
                        )

                    [1] => Array
                        (
                            [id] => 266339626
                            [name] => Профессиональная отвертка с насадками 5 в 1 для ремонта сотовых телефонов, синяя
                        )

                )

            [metrics] => Array
                (
                    [0] => 0
                )

        )

    [266818422] => Array
        (
            [dimensions] => Array
                (
                    [0] => Array
                        (
                            [id] => 2021-09
                            [name] => 
                        )

                    [1] => Array
                        (
                            [id] => 266818422
                            [name] => Профессиональная отвертка с насадками 5 в 1 для ремонта сотовых телефонов, фиолетовая
                        )

                )

            [metrics] => Array
                (
                    [0] => 0
                )

        )

)

And is it possible to remove the null element in [dimensions] ?

Answer 1

something like that