DateLib::makeTimestamp

private function makeTimestamp($date, $appendOffset = false)
{
	if (!$date || (!is_scalar($date) && !is_object($date)))
	{
		return false;
	}

	//serialized date string
	if (is_string($date) && BizprocBaseTypeValueDate::isSerialized($date))
	{
		$date = new BizprocBaseTypeValueDate($date);
	}

	if ($date instanceof BizprocBaseTypeValueDate)
	{
		return $date->getTimestamp() + ($appendOffset ? $date->getOffset() : 0);
	}

	if (intval($date) . "!" === $date . "!")
	{
		return $date;
	}

	if (($result = MakeTimeStamp($date, FORMAT_DATETIME)) === false)
	{
		if (($result = MakeTimeStamp($date, FORMAT_DATE)) === false)
		{
			if (($result = MakeTimeStamp($date, "YYYY-MM-DD HH:MI:SS")) === false)
			{
				$result = MakeTimeStamp($date, "YYYY-MM-DD");
			}
		}
	}
	return $result;
}