org\bovigo\vfs\vfsStreamDirectory::sizeSummarized PHP Метод

    public function sizeSummarized()
    {
        $size = 0;
        foreach ($this->children as $child) {
            if ($child->getType() === vfsStreamContent::TYPE_DIR) {
                $size += $child->sizeSummarized();
            } else {
                $size += $child->size();
            }
        }
        return $size;
    }