如何使用SPL检索完整目录树? [英] How can I retrieve the full directory tree using SPL?

问题描述

如何使用SPL(可能使用RecursiveDirectoryIterator和RecursiveIteratorIterator)检索完整目录树?

How can I retrieve the full directory tree using SPL, possibly using RecursiveDirectoryIterator and RecursiveIteratorIterator?

推荐答案

默认情况下，RecursiveIteratorIterator将使用LEAVES_ONLY作为

By default, the RecursiveIteratorIterator will use LEAVES_ONLY for the second argument to __construct. This means it will return files only. If you want to include files and directories (at least that's what I'd consider a full directory tree), you'd have to do:

$iterator = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($path),
    RecursiveIteratorIterator::SELF_FIRST
);

，然后可以在其上foreach.如果要返回目录树而不是输出目录树，则可以将其存储在数组中，例如

and then you can foreach over it. If you want to return the directory tree instead of outputting it, you can store it in an array, e.g.

foreach ($iterator as $fileObject) {
    $files[] = $fileObject;
    // or if you only want the filenames
    $files[] = $fileObject->getPathname();
}

您还可以通过执行以下操作来创建不包含foreach的$fileObjects数组:

You can also create the array of $fileObjects without the foreach by doing:

$files[] = iterator_to_array($iterator);

如果只希望返回目录，请像这样在$iterator上通过foreach

If you only want directories returned, foreach over the $iterator like this:

foreach ($iterator as $fileObject) {
    if ($fileObject->isDir()) {
        $files[] = $fileObject;
    }
}

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