如何将数组的子值移到父键？

Question

我需要弄清楚什么PHP函数可以实现我的目标。

这是我有一个PHP数组：

Array
(
[0] => Array
    (
        [id] => 6
        [index] => 1
        [active] => 1
        [name] => MyName
    )

[1] => Array
    (
        [id] => 1
        [index] => 2
        [active] => 1
        [name] => YourName
    )

[2] => Array
    (
        [id] => 2
        [index] => 4
        [active] => 1
        [name] => TheirName
    )
}

我想使用“索引”值并将其设为该数组父级的KEY，因此该数组将变为：

Array
(
[1] => Array
    (
        [id] => 6
        [index] => 1
        [active] => 1
        [name] => MyName
    )

[2] => Array
    (
        [id] => 1
        [index] => 2
        [active] => 1
        [name] => YourName
    )

[4] => Array
    (
        [id] => 2
        [index] => 4
        [active] => 1
        [name] => TheirName
    )
}

谁能告诉我如何在PHP中执行此操作？

先感谢您。

Answer 1

您可以使用：array_column（$ array，null，'index'）; 是更好的解决方案，但仅适用于> = 5.5 php版本