将多维数组排序/拆分成许多更小的数组 [英] sorting / splitting multidimensional array into many smaller

问题描述

更新: 抱歉，我想通了.. 我只取出 $value[0]，所以关闭，因为它只有一个结果.需要更多的睡眠.非常感谢.我仍然愿意就更简洁的数组拆分方法提出建议.

UPDATE: Sorry, I figured it out.. I'm only taking out $value[0], so off cause its only one result. Need more sleep. Thanks alot. I'm still open for suggestions to a cleaner way to split arrays.

我有一个具有这种结构的数组 $tdata:

I have an array $tdata with this structure:

Array
(
    [] => Array
    (
        [0] => Array
            (
                [firstName] => test
                [lastName] => test
                [userName] => [e-mail]
                [password] => test
                [course] => test
                [role] => test
            )

        [1] => Array
            (
                [firstName] => test
                [lastName] => test
                [userName] => [e-mail]
                [password] => test
                [course] => test
                [role] => test
            )

    )

    [delete] => Array
    (
        [0] => Array
            (
                [firstName] => test
                [lastName] => test
                [userName] => [e-mail]
                [password] => test
                [course] => test
                [role] => test
            )

    )

    [update] => Array
    (
        [0] => Array
            (
                [firstName] => test
                [lastName] => test
                [userName] => [e-mail]
                [password] => test
                [course] => test
                [role] => test
            )

    )

    [outrole] => Array
    (
        [0] => Array
            (
                [firstName] => test
                [lastName] => test
                [userName] => [e-mail]
                [password] => test
                [course] => test
                [role] => test
            )

    )

)

我正在尝试将其拆分为更小的数组.像这样:

I am trying to split it up into smaller arrays. Like this:

foreach ($tdata as $key => $value) {

    if ($key == '') {
       $create[] = $value[0];
    }elseif ($key == 'outrole') {
       $outrole[]  = $value[0];
    }elseif ($key == 'delete') {
       $delete[] = $value[0];
    }elseif ($key == 'update') {
       $update[] = $value[0];
    }else{
     $noaction[] = $value[0];
    }

}

我认为这样数组会不断覆盖自己.print_r($create) 或任何其他数组始终只返回 1 个结果.可以启发我并告诉我我做错了什么吗?

This way the array keeps overwriting itself, I think. print_r($create) or any other of the arrays always returns only 1 result. Can enlighten me and tell me what I am doing wrong?

如果有更好的方法，我也很乐意听到.

If there is a better way to do it I would love to hear that as well.

提前致谢！

推荐答案

如果这些键始终存在，那么您实际上并不需要循环:

If those keys are always present then you don't really need a loop:

$create = $original['create'];
$outrole = $original['outrole'];

您可以添加检查是否已设置:

You can add a check if they are set:

$create = isset($original['create']) ? $original['create'] : array();

如果它不存在，这会将其设置为一个空白数组.

This will set it to a blank array if it's not present.

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