包含键和关联数组的数组，如何建立关系

问题描述

我有一个包含path到另一个数组中的特定值的数组，为了使它更加清楚，这是一个例子.

I have an array which contains the path to a specific value from an other array, to make it a bit more clear, here is an exemple.

包含要称为$ params的键的数组

My array containing the keys which I'll call $params

Array
(
    [0] => paths
    [1] => assets
    [2] => js
)

这是我的关联数组，我将其称为$ config

And here is my associative array which I'll call $config

Array
(
    [paths] => Array
        (
            [assets] => Array
                (
                    [js] => /assets/js
                    [css] => /assets/css
                )

        )

    [library] => Array
        (
            [js] => jQuery
        )

)

那么我该如何使用数组1来访问数组2中的值?

So how could I use my array 1 to access the value in my array 2?

我尝试了$config[$params[0]][$params[1]][$params[2]]，但是效率不高.

I tried $config[$params[0]][$params[1]][$params[2]], but it's not efficient at all.

推荐答案

您可以尝试

$path = array(
        0 => 'paths',
        1 => 'assets',
        2 => 'js',
);


$data = array(
  'paths' => array(
    'assets' => array(
      'js' => '/assets/js',
      'css' => '/assets/css',
    ),
  ),
  'library' => array(
    'js' => 'jQuery',
  ),
);


$temp = $data;
foreach($path as $key) {
    $temp = $temp[$key];
}

var_dump($temp);

输出

string '/assets/js' (length=10)

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