如何在PHP中重命名数组键? [英] How to rename array keys in PHP?

问题描述

当我在名为$ tags的变量(多维数组)上进行var_dump时，会得到以下信息:

When I var_dump on a variable called $tags (a multidimensional array) I get this:

Array
(
    [0] => Array
        (
            [name] => tabbing
            [url] => tabbing
        )

    [1] => Array
        (
            [name] => tabby ridiman
            [url] => tabby-ridiman
        )

    [2] => Array
        (
            [name] => tables
            [url] => tables
        )

    [3] => Array
        (
            [name] => tabloids
            [url] => tabloids
        )

    [4] => Array
        (
            [name] => taco bell
            [url] => taco-bell
        )

    [5] => Array
        (
            [name] => tacos
            [url] => tacos
        )
)

我想将所有名为"url"的数组键重命名为"value".这样做的一个好方法是什么?

I would like to rename all array keys called "url" to be called "value". What would be a good way to do this?

推荐答案

您可以使用 array_map() 来完成.

You could use array_map() to do it.

$tags = array_map(function($tag) {
    return array(
        'name' => $tag['name'],
        'value' => $tag['url']
    );
}, $tags);

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