如何内爆二维数组中的子数组? [英] How to implode subarrays in a 2-dimensional array?

问题描述

如果它们是数组，我想将值内含到以逗号分隔的字符串中:

I want to implode values in to a comma-separated string if they are an array:

我有以下数组:

$my_array = [
    "keywords" => "test",
    "locationId" => [ 0 => "1", 1 => "2"],
    "industries" => "1"
];

要实现这一点，我需要以下代码:

To achieve this I have the following code:

foreach ($my_array as &$value)
    is_array($value) ? $value = implode(",", $value) : $value;
unset($value);

以上内容还将更改原始数组.有没有更优雅的方法来创建与上述相同的新数组?

The above will also change the original array. Is there a more elegant way to create a new array that does the same as the above?

我的意思是，如果值是单行代码中的数组，则将其内爆吗?也许array_map()? ...但是然后我将不得不创建另一个函数.

I mean, implode values if they are an array in a single line of code? perhaps array_map()? ...but then I would have to create another function.

推荐答案

只需创建一个新数组并设置元素(-;

Just create a new array and set the elements (-;

<?php
...
$new_array = [];
foreach ($my_array as $key => $value)
     $new_array[$key] = is_array($value) ? implode(",", $value) : $value;

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