Question

我正在使用此代码获取子目录列表。

<?php
$path = '/www/sites/';

$directory_iterator = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::KEY_AS_PATHNAME);

$iterator = new RecursiveIteratorIterator($directory_iterator,
    RecursiveIteratorIterator::SELF_FIRST,
    RecursiveIteratorIterator::CATCH_GET_CHILD);

foreach ($iterator as $file => $info) {
    if ($info->isDir()) {
        echo $file . "\n";
    }
}
?>

但它正在给我这样的回报

/www/sites/000/4e7
/www/sites/000/4e7/.
/www/sites/000/4e7/..
/www/sites/000/4e7/mydomains.com
/www/sites/000/4e7/mydomains.com/.
/www/sites/000/4e7/mydomains.com/..
/www/sites/000/4e7/mydomains.com/web
/www/sites/000/4e7/mydomains.com/web/.
/www/sites/000/4e7/mydomains.com/web/..
/www/sites/000/4e7/mydomains.com/web/cgi-bin
/www/sites/000/4e7/mydomains.com/web/cgi-bin/.
/www/sites/000/4e7/mydomains.com/web/cgi-bin/..
/www/sites/000/4e7/mydomains.com/web/Resources
/www/sites/000/4e7/mydomains.com/web/Resources/.

我将根路径指定为/www/sites 我在上面的输出中只需要

/www/sites/000/4e7/mydomains.com

休息对我来说毫无用处。这意味着我只想从指定的路径爬取最多3个子目录。我有成千上万的子目录，这就是为什么我要修改当前代码，因为它花费了太多时间提前谢谢。

Answer 1

使用directoryiterator::isdot()，recursiveiteratoriterator::getdepth()，例如：

<?php
$path = '/www/sites/';

$directory_iterator = new RecursiveDirectoryIterator($path,RecursiveDirectoryIterator::KEY_AS_PATHNAME);

$iterator = new RecursiveIteratorIterator($directory_iterator,RecursiveIteratorIterator::SELF_FIRST,RecursiveIteratorIterator::CATCH_GET_CHILD);

foreach ($iterator as $file => $info) {
    // +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    // Restrict to 3 levels only and ignore non-directory and dot files 
    if ($info->getDepth() >= 3 || !$info->isDir() || $info->isDot())
        continue;
    // +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    echo $file . "\n";
}

输出

/www/sites/000
/www/sites/000/4e7
/www/sites/000/4e7/mydomains.com

获取指定PATH的子目录列表到指定数量的子目录

1 个答案: