CFilemanUtilDir::Recursion

public function Recursion($dir)
{
	//error_reporting(0);
	global $USER;

	$io = CBXVirtualIo::GetInstance();

	if ($this->bDirFirst && $this->processDir && (!$this->startPath || $this->bFound))
		if (!$this->CallMethod($this->processDir, $dir))
		{
			$this->err[] = 'Error on dir: '.$dir;
			return false;
		}

	$dTmp = $io->GetDirectory($dir);
	$arChildren = $dTmp->GetChildren();

	$arItems = array();
	foreach ($arChildren as $child)
		$arItems[] = $child->GetName();

	sort($arItems);
	$s_dir = CFilemanUtils::TrimPath($dir, $this->docRoot);

	foreach($arItems as $item)
	{
		$f = $dir."/".$item;
		if ($this->startPath && !$this->bFound)
		{
			if ($this->startPath == $f)
				$this->bFound = true;
			elseif (mb_substr($this->startPath, 0, mb_strlen($f) + 1) != $f.'/')
				continue;
		}

		$arPath = array($this->site, $s_dir."/".$item);
		$this->nextPath = $f;

		if ($this->checkBreak && $this->CallMethod($this->checkBreak))
		{
			$this->bBreak = true;
			return true;
		}

		if ($this->bSkipSymLinks && is_link($f))
			continue;

		if ($io->DirectoryExists($f))
		{
			if (!$USER->CanDoFileOperation('fm_view_listing', $arPath)) // access
				continue;

			$r = $this->CallMethod($this->callBack, $f);
			if ($r == 'stop')
			{
				$this->bBreak = true;
				$this->bStoped = true;
				return true;
			}

			if ($this->checkSubdirs)
			{
				$r = $this->Recursion($f);
				if ($this->bBreak)
					return $r;
				if ($r===false)
					return false;
			}
		}
		elseif ($this->callBack)
		{
			$r = $this->CallMethod($this->callBack, $f);
			if ($r == 'stop')
			{
				$this->bBreak = true;
				$this->bStoped = true;
				return true;
			}

			if ($r===false)
			{
				$this->err[] = 'Error on file: '.$f.'';
				return false;
			}
			$this->cntFile++;
		}
	}

	if ($this->processDir && !$this->bDirFirst)
	{
		if (!$this->CallMethod($this->processDir, $dir))
		{
			$this->err[] = 'Error on folder: '.$dir;
			return false;
		}
	}
	return true;
}