使用 php 将无限极数组映射成文件夹
在处理配置文件时,经常需要将嵌套的数组映射成文件和目录结构。例如,给定以下配置文件:
$config = [ ‘uuid’=>’string’, ‘info’=>’string’, ‘main’=>[ ‘uuid’=>’string’, ‘cmd’=>’string’, ‘child’=>[‘uuid’=>’string’,’remark’=>’string’,’game’=>[ ‘user’=>’name’, ‘money’=>’1000’] ], ‘logs’=>[‘path’=>’/path/path’,’date’=>’2023-09-01′ ] ], ‘video’=>[ ‘uuid’=>’vid’, ‘info’=>’info’, ‘file’=>[‘size’=>’12900’ ] ]];
需要将其映射成如下目录结构:
mainmain/childmain/child/gamemain/logsvideovideo/file
为了解决这个问题,可以使用如下的 php 代码将无限极数组映射成文件夹:
function flatten($nodes, $prefix = ”) { $list = []; foreach ($nodes as $key => $value) { if (is_array($value)) {$path = $prefix . $key;$list[] = $path;$list = array_merge($list, flatten($value, $path . ‘/’)); } } return $list;}$list = flatten($config);
或者使用 recursiveiteratoriterator:
$list = [];$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($config), RecursiveIteratorIterator::SELF_FIRST);foreach ($iterator as $key => $value) { if (is_array($value)) { $path = ”; foreach (range(0, $iterator->getDepth()) as $depth) {$path .= $iterator->getSubIterator($depth)->key() . ‘/’; } $list[] = rtrim($path, ‘/’); }}
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