Question

我正在尝试在数组级别或foreach级别上组合两个条目（都可以正常工作）

代码如下：

foreach ($objects['Contents'] as $object) {

    $_object_ = str_replace($prefix, '', $object['Key']);
    $_date_ = str_replace('+00:00', '', str_replace('T', ' ', $object['LastModified']));

    $folders = array();

    if (strpos($_object_, '/') !== false && substr($_object_, -1) != '/') {

        if (!in_array(strtok($_object_, '/'), $folders)) {
            array_push($folders, strtok($_object_, '/'));
        }

    } elseif (strpos($_object_, '/') !== false) {
        array_push($folders, str_replace('/', '', $_object_));
    }

    echo '<pre>';

    foreach($folders as $folder){
      echo $folder.'<br/>';
      if (strpos($_object_ , $folder.'/') !== false) {
        echo ' -'.str_replace($folder.'/', '', $_object_);
      }
    }

    echo '</pre>';

}

以下是输出：

folder
 -
general
 -BMS-Shield.txt
general
 -image-2.jpg
planning
 -composer.json
test
 -

这是所需的输出：

folder

general
 -BMS-Shield.txt
 -image-2.jpg
planning
 -composer.json
test

仅出于一点背景，我试图从aws s3获取文件列表并显示每个文件夹的内容（“文件夹”，“常规”，“计划”等），但是当还有更多内容时而不是文件夹中的一个文件，它将打印该文件夹两次（如上面的输出所示）。

这是s3上的文件结构：

我尝试了array_unique()函数，但是给出了相同的输出。

任何帮助将不胜感激。

$ objects ['Contents']的输出：

$ folders的输出：

Array
(
    [0] => test
)

Answer 1

您可以通过将$folders数组的键作为文件夹名称，并将值作为子文件夹的数组作为键来实现：

$objects = [
    [
        'Key' => 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/folder/',
        'LastModified' => [
            'date' => '2020-02-25 09:47:43.000000',
            'timezone_type' => '2',
            'timezone' => 'Z'
        ],
        'ETag' => 'd41d8cd98f00b204e9800998ecf8427e',
        'Size' => 0,
        'StorageClass' => 'STANDARD'
    ],
    [
        'Key' => 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/general/BMS-Shield.txt',
        'LastModified' => [
            'date' => '2020-02-25 10:24:58.000000',
            'timezone_type' => '2',
            'timezone' => 'Z'
        ],
        'ETag' => '5270e0e4f58c9b33eb7fc6f4cb3c8a04',
        'Size' => 0,
        'StorageClass' => 'STANDARD'
    ],
    [
        'Key' => 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/general/image-2.jpg',
        'LastModified' => [
            'date' => '2020-02-24 16:34:21.000000',
            'timezone_type' => '2',
            'timezone' => 'Z'
        ],
        'ETag' => '1c6eaa239899913d732a4bca343a1eac',
        'Size' => 0,
        'StorageClass' => 'STANDARD'
    ],
    [
        'Key' => 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/planning/composer.json',
        'LastModified' => [
            'date' => '2020-02-24 16:34:45.000000',
            'timezone_type' => '2',
            'timezone' => 'Z'
        ],
        'ETag' => 'b83a5f582075d5668c8bb092b2e20516',
        'Size' => 62,
        'StorageClass' => 'STANDARD'
    ] ,
    [
        'Key' => 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/test/',
        'LastModified' => [
            'date' => '2020-02-25 09:08:36.000000',
            'timezone_type' => '2',
            'timezone' => 'Z'
        ],
        'ETag' => 'd41d8cd98f00b204e9800998ecf8427e',
        'Size' => 0,
        'StorageClass' => 'STANDARD'
    ] 
];

$prefix = 'dashboard/demo.consultive.test/user-data/nXb2K1feviqsjzuW7mgQG2Cghc1Kem8U/uploads/';

$folders = [];

foreach ($objects as $object) {

    $sub_folders = array();

    $_object_ = str_replace($prefix, '', $object['Key']);
    $_date_ = str_replace('+00:00', '', str_replace('T', ' ', $object['LastModified']));

    if (strpos($_object_, '/') !== false && substr($_object_, -1) != '/') {

        if (!in_array(strtok($_object_, '/'), $folders)) {
            $folders[strtok($_object_, '/')][] = explode('/', $_object_)[1];
        }

    } elseif (strpos($_object_, '/') !== false) {
        $folders[str_replace('/', '', $_object_)] = '';
    }
} 

echo '<pre>';

    foreach($folders as $key => $folder){
      echo $key.'<br/>';
      if (is_array($folder)) {
          foreach($folder as $f) {
            echo ' -'.$f;
            echo '<br/>';
          }
      } else {
        echo '<br/>';
      }
    }

echo '</pre>';

^{免责声明：代码正在运行，并且为您提供了更好的逻辑思路。它没有优化，也不是最佳解决方案。但这是一个解决方案。}

https://wtools.io/php-sandbox/b0dL

合并数组/ foreach中的重复条目

1 个答案: