来自多维数组键值的php数组 [英] php array from multidimensional array keys values

问题描述

初学者问题。初始php数组是多维的，内部包含数组。

Beginner question. Initial php array is multidimensional with arrays inside. Take a look.

    Array
    (
[0] => Array
    (
        [textkey] => text
        [file] => file.txt
    )

[1] => Array
    (
        [anotherkey] => another text
        [file] => file2.xml
    )

[2] => Array
    (
        [text_success] => Success
        [newfile] => scope.txt
    ))

如何用foreach或其他方式重建它？

How to rebuild it with foreach or other way? Is any function to rebuild array to?

Array
(
[textkey] => text
[file] => file.txt
[anotherkey] => another text
[file] => file2.xml
[text_success] => Success
[newfile] => scope.txt
)

推荐答案

这是您可能想要的代码，其中 $ array =上面指定的数组。

This is the code you may want where $array = to the array you specified above.

$newArray = [];

foreach($array as $segment) {
    foreach($segment as $key => $value) {
        $newArray[$key] = $value;
    }
}

print_r($newArray);

这是输出：

Array
(
    [textkey] => text
    [file] => file2.xml
    [anotherkey] => another text
    [text_success] => Success
    [newfile] => scope.txt
)

但是，有一个问题。 file 键均未显示，因为单个键不能在数组中多次使用。要解决该问题，您可以为文件密钥分配一个简单的数组，其文件名如下：

But, there is a problem. Both the file keys are not shown, because a single key cannot be used multiple times in an array. To get over that issue, you can assign a simple array to the file key with the file names like this:

$newArray = [];

foreach($array as $segment) {
    foreach($segment as $key => $value) {
        if($key == 'file') {
            $newArray['file'][] = $value;   
        } else {
            $newArray[$key] = $value;
        }
    }
}

print_r($newArray);

这给出了输出：

Array
(
    [textkey] => text
    [file] => Array
        (
            [0] => file.txt
            [1] => file2.xml
        )

    [anotherkey] => another text
    [text_success] => Success
    [newfile] => scope.txt
)

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