directoryentry.php

См. документацию.

<?php
 
namespace Bitrix\Main\IO;
 
abstract class DirectoryEntry extends FileSystemEntry
{
    public function __construct($path, $siteId = null)
    {
        parent::__construct($path, $siteId);
    }
 
    public function create()
    {
        if ($this->isExists())
        {
            return;
        }
 
        $arMissingDirs = [$this->getName()];
        $dir = $this->getDirectory();
        while (!$dir->isExists())
        {
            $arMissingDirs[] = $dir->getName();
            $dir = $dir->getDirectory();
        }
 
        $arMissingDirs = array_reverse($arMissingDirs);
        foreach ($arMissingDirs as $dirName)
        {
            $dir = $dir->createSubdirectory($dirName);
        }
 
        $this->exists = null;
    }

    abstract public function getChildren();

    abstract public function createSubdirectory($name);
 
    public function isDirectory()
    {
        return true;
    }
 
    public function isFile()
    {
        return false;
    }
 
    public function isLink()
    {
        return false;
    }
}