PHP将字符串键分解为带有值的多维数组 [英] PHP explode string key into multidimensional array with values

问题描述

我有一个数组:

$array = [
    "main;header;up" => "main_header_up value",
    "main;header;bottom" => "main_header_bottom value",
    "main;bottom" => "main_bottom value",
    "main;footer;right;top" => "main_footer_right_top value"
];

我想要得到的是将数组键分解为多维数组，但保留值，结果应等于此数组:

What I'd like to get is explode the array keys into multidimensional array but keep the values and the result should be equivalent of this array:

$array = [
    "main" => [
        "header" => [
            "up" => "main_header_up value", 
            "bottom" => "main_header_bottom value"
        ],
        "bottom" => ["main_bottom value"],
        "footer" => [
            "right" => [
                "top" => "main_footer_right_top value
            ]
        ]
    ]
];

我想我应该声明; 的数量不是预先确定的.键/索引中可能没有，或者可能有10个(或更多).

I guess I should state that the number of ; is not predetermined. There could be none or there could be 10 (or more) of them in a key / index.

有什么优雅的方法可以做到这一点吗?

Is there any elegant way to achieve this?

推荐答案

在这里，我使用的是这样的东西:

Here is what I use for things like this:

$result = array();

foreach($array as $path => $value) {
    $temp =& $result;

    foreach(explode(';', $path) as $key) {
        $temp =& $temp[$key];
    }
    $temp = $value;
}
    
print_r($result);

• 环绕数组并 explode()上;
上的键
• 展开爆炸值并根据这些值创建嵌套键
• 将原始数组元素的值分配给最后一个键

我对

My answer to How to write getter/setter to access multi-level array by key names? may help if you need some functions to do this.

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