Imap::getUidRange

public function getUidRange($mailbox, &$error)
{
	$error = null;

	if (!$this->select($mailbox, $error))
	{
		return false;
	}

	if (!($this->sessMailbox['exists'] > 0))
	{
		return false;
	}

	$range = $this->fetch(false, $mailbox, sprintf('1,%u', $this->sessMailbox['exists']), '(UID)', $error);

	if (empty($range) || empty($range[1]))
	{
		return false;
	}

	return array(
		$range[1]['UID'],
		end($range)['UID'],
	);
}