展开创建多维数组的路径 [英] Explode path to create multidimensional array

问题描述

我正在尝试从一个zip文件中创建一个关联数组，其中的文件夹是键，而文件是最里面的值.

I am trying to make an associative array from a zip file, where the folders are the keys and the files are the innermost values.

当前，当我在zip文件中的每个条目上按/爆炸时，会得到类似以下内容:

Currently when I explode on / on each entry in the zip file I get something like this:

Array
(
    [0] => Folder1
    [1] => Folder2
    [2] => File1.txt
)
Array
(
    [0] => Folder1
    [1] => Folder2
    [2] => File2.txt
)
Array
(
    [0] => Folder1
    [1] => Folder3
    [2] => File3.txt
)

要实现这一点(在$path上执行print_r):

To achieve that I am doing this (doing a print_r on $path):

if(in_array($content["ext"], array("zip"))){
    $zip       = zip_open($file);
    while($zip_entry = zip_read($zip)){
        $zip_path    = zip_entry_name($zip_entry);
        $path        = explode("/", $zip_path);
        $path        = array_filter($path);
        $lastElement = end($path);

        foreach($path as $key => $item){
            if($item != $lastElement){

            }
        }
    }
}

print_r($files);

我想要的是$files包含一个多维数组，以得到如下所示的结果:

What I would like is for $files to contain a multidimensional array for a result that looks like this:

Array
(
    [Folder1] => Array
    (
        [Folder2] => Array
        (
            [0] => File1.txt
            [1] => File2.txt
        )
        [Folder3] => Array
        (
            [0] => File3.txt
        )
    )
)

没有深度的实现这一目标的最佳方法是什么?

What is the best way to achieve this without a depth?

推荐答案

if (in_array($content["ext"], array("zip"))) {
    $zip = zip_open($file);

    $files = array();

    while ($zip_entry = zip_read($zip)) {
        $zip_path = zip_entry_name($zip_entry);
        $path = explode("/", $zip_path);
        $path = array_filter($path);
        $lastElement = end($path);

        //reset pointer
        $cur = &$files;

        $count = count($path);

        //set pointer to proper parent folder
        for ($i = 0; $i < $count - 1; $i++) {
            $cur = &$cur[$path[$i]];
        }

        //add file
        $cur[] = $path[$i];
    }

    //delete pointer
    unset($cur);
}

print_r($files);

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