Question

我有一个包含多年子文件夹的文件夹（例如2011年，2012年等）。每年的文件夹包含月份文件夹（例如02,09等）。

如何计算月份文件夹的总大小并将其与年份和月份文件夹名称一起列出？

示例：

目录名称 - 尺寸

06/2008 - 52KB

10/2010 - 151MB

27/2012 - 852MB

12/01/2013 - 5GB

干杯。

Answer 1

您可以尝试

echo "<pre>";
$depth = 1;

$ritit = new RecursiveIteratorIterator(new RecursiveDirectoryIterator(__DIR__, RecursiveDirectoryIterator::SKIP_DOTS), RecursiveIteratorIterator::CHILD_FIRST);
$r = array();
foreach ( $ritit as $splFileInfo ) {
    if ($ritit->getDepth() === $depth && $splFileInfo->isDir()) {
        printf("%s - %s \n", $splFileInfo, getSize($splFileInfo));
    }
}

function getSize($dir, $precision = 2) {
    $ritit = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS));
    $bytes = 0;
    foreach ( $ritit as $v ) {
        $bytes += $v->getSize();
    }
    $units = array('B','KB','MB','GB','TB');
    $bytes = max($bytes, 0);
    $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
    $pow = min($pow, count($units) - 1);
    $bytes /= pow(1024, $pow);
    return round($bytes, $precision) . ' ' . $units[$pow];
}

您也可以使用FilterIterator

尝试此方法

$depth = 1;
$it = new RecursiveDirectoryIterator("./", RecursiveDirectoryIterator::SKIP_DOTS);
$it = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::SELF_FIRST);
$it = new FileDepthFilterIterator($it, $depth, FileDepthFilterIterator::ONLY_DIR);

foreach ( $it as $splFileInfo ) {
    printf("%s\n", new RecusiveSizeInfo($splFileInfo));
}

使用的课程

class FileDepthFilterIterator extends FilterIterator {
    private $it;
    private $depth;
    private $type;
    const ONLY_DIR = 1;
    const ONLY_FILE = 2;
    const BOTH_DIR_FILE = 3;

    function __construct(RecursiveIteratorIterator &$iterator, $depth, $type) {
        $this->it = &$iterator;
        $this->depth = $depth;
        $this->type = $type;
        parent::__construct($this->it);
    }

    function accept() {
        if ($this->getDepth() != $this->depth) {
            return false;
        }
        if ($this->type == self::ONLY_DIR && ! $this->getInnerIterator()->current()->isDir()) {
            return false;
        }
        if ($this->type == self::ONLY_FILE && ! $this->getInnerIterator()->current()->isFile()) {
            return false;
        }

        return true;
    }
}

class RecusiveSizeInfo {
    /**
     *
     * @var SplFileInfo
     */
    private $info;
    private $numFiles = 0;
    private $numFolder = 0;
    private $bytes = 0;

    function __construct(SplFileInfo $info) {
        $this->info = $info;
        $this->parse();
    }

    public function getNumFiles() {
        return $this->numFiles;
    }

    public function getNumFolder() {
        return $this->numFolder;
    }

    public function getBytes() {
        return $this->bytes;
    }

    public function __toString() {
        return sprintf("%s\t%s\t%s", $this->info, $this->formatSize($this->getBytes()), json_encode(array("file" => $this->numFiles,"dir" => $this->numFolder)));
    }

    private function parse() {
        $ritit = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->info , RecursiveDirectoryIterator::SKIP_DOTS),RecursiveIteratorIterator::SELF_FIRST);
        foreach ( $ritit as $v ) {
            $v->isFile() and $this->numFiles ++;
            $v->isDir() and $this->numFolder ++;
            $this->bytes += $v->getSize();
        }
    }

    private function formatSize($bytes) {
        $units = array('B','KB','MB','GB','TB');
        $bytes = max($bytes, 0);
        $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
        $pow = min($pow, count($units) - 1);
        $bytes /= pow(1024, $pow);
        return round($bytes, 2) . ' ' . $units[$pow];
    }
}

Answer 2

查看this answer以计算出目录的大小。要实施，您需要traverse your directory structure recursively，或手动指定所需的目录：

<li>2012/01 <?php echo foldersize('/2012/01'); ?></li>
<li>2012/02 <?php echo foldersize('/2012/01'); ?></li>

计算目录的子目录大小（PHP）

2 个答案: