PHP将多维数组展平，同时保持索引与相同的键相关

我有以下数组：

(
[0] => Array
    (
        [items] => Array
            (
                [0] => Array ( [snippet] => text1 )
                [1] => Array ( [snippet] => text2 )
                [2] => Array ( [snippet] => text3 )
            )
    )

[1] => Array
    (
        [items] => Array
            (
                [0] => Array ( [snippet] => text4 )
                [1] => Array ( [snippet] => text5 )
                [2] => Array ( [snippet] => text6 )
            )

    )  
 )

我想把它变成这样：

Array
(
[items] => Array
    (
        [0] => Array ( [snippet] => text )
        [1] => Array ( [snippet] => text )
        [2] => Array ( [snippet] => text )
        [3] => Array ( [snippet] => text )
        [4] => Array ( [snippet] => text )
        [6] => Array ( [snippet] => text )
    )
)

数组中可以有更多的“项”层，“片段”层中可以有数组，我还需要保留第一个“项”数组的索引，并按照上面所示继续其余的数组，我无法理解，请提供任何帮助。

您可以使用来实现这一点：

$arr = [
    [
        'items' => [['snippet' => 'text1'],['snippet' => 'text2'],['snippet' => 'text3']]
    ],
    [
        'items' => [['snippet' => 'text4'],['snippet' => 'text5'],['snippet' => 'text6']]
    ]
];

print_r(array_merge_recursive(...$arr));

给出：

Array
(
    [items] => Array
        (
            [0] => Array
                (
                    [snippet] => text1
                )

            [1] => Array
                (
                    [snippet] => text2
                )

            [2] => Array
                (
                    [snippet] => text3
                )

            [3] => Array
                (
                    [snippet] => text4
                )

            [4] => Array
                (
                    [snippet] => text5
                )

            [5] => Array
                (
                    [snippet] => text6
                )

        )

)

---

还有，这是打字错误吗

数组的索引为0,1,2,3,4,6->缺少5

text1，text2，text3。。。仅替换为

文本

您可以使用来实现这一点：

$arr = [
    [
        'items' => [['snippet' => 'text1'],['snippet' => 'text2'],['snippet' => 'text3']]
    ],
    [
        'items' => [['snippet' => 'text4'],['snippet' => 'text5'],['snippet' => 'text6']]
    ]
];

print_r(array_merge_recursive(...$arr));

给出：

Array
(
    [items] => Array
        (
            [0] => Array
                (
                    [snippet] => text1
                )

            [1] => Array
                (
                    [snippet] => text2
                )

            [2] => Array
                (
                    [snippet] => text3
                )

            [3] => Array
                (
                    [snippet] => text4
                )

            [4] => Array
                (
                    [snippet] => text5
                )

            [5] => Array
                (
                    [snippet] => text6
                )

        )

)

---

还有，这是打字错误吗

数组的索引为0,1,2,3,4,6->缺少5

text1，text2，text3。。。仅替换为

文本

---

这个很好用！你能解释一下这3个点在“…$arr”上的作用吗？它被称为

splat

操作符，用于解压参数：splat操作符是PHP5.6中发布的功能，它工作得很好！你能解释一下这3个点在“…$arr”上做了什么吗？它被称为

splat

操作符，用于解压参数：splat操作符是PHP5.6中发布的特性