php - 如何使用php用该数组的项目替换多维数组的数组？

Question

在下面的多维数组中，我将如何用它们各自的值替换顶级索引[0] [1]&[2][SUB1]

Array
(
    [0] => Array
        (
            [SUB1] => AAA111
            [SUB2] => Description 1
            [SUB3] => 10
        )

    [1] => Array
        (
            [SUB1] => BBB222
            [SUB2] => Description 2
            [SUB3] => 20
        )

    [2] => Array
        (
            [SUB1] => CCC333
            [SUB2] => Description 3
            [SUB3] => 30
        )

)

我已经设法使用$sub1 = array_column( $array, 'SUB1' );来获取下面的数组，但我不确定是否存在一个简单的函数来使用它来用值替换原始数组中的索引。

Array
(
    [0] => AAA111
    [1] => BBB222
    [2] => CCC333
)

编辑：

期望的输出：

Array
(
    [AAA111] => Array
        (
            [SUB2] => Description 1
            [SUB3] => 10
        )

    [BBB222] => Array
        (
            [SUB2] => Description 2
            [SUB3] => 20
        )

    [CCC333] => Array
        (
            [SUB2] => Description 3
            [SUB3] => 30
        )

)

Answer 1

请检查下面的示例，其中 $test 等于您的主数组。

$output = [];
foreach ($test as $t) {
    $first = reset($t);
    $remaining = array_shift($t);
    $output[$first] = $t;
}

echo '<pre>';
print_r($output);