/**
* Return seconds difference between two dates.
*
* @param mixed $periodStartDate
* @param mixed $periodEndDate
*
* @return int
*
* @throws \InvalidArgumentException
* @throws \OutOfRangeException
* @throws \RuntimeException
*/
public static function secondsDiff($periodStartDate, $periodEndDate)
{
/**
* @var \DateTime $fromDate
* @var \DateTime $toDate
*/
// @codeCoverageIgnoreStart
$dateRange = new DateRange($periodStartDate, $periodEndDate);
$fromDate = $dateRange->getRangeBegin();
$toDate = $dateRange->getRangeEnd();
// @codeCoverageIgnoreEnd
$diff = $fromDate->diff($toDate);
// @codeCoverageIgnoreStart
if ($diff === false) {
throw new \RuntimeException('Unexpected runtime error.');
}
// @codeCoverageIgnoreEnd
if ($diff->y > 0 || $diff->m > 0) {
throw new \OutOfRangeException('Date diff may not exceed one month.');
}
$seconds = 0;
if ($diff->d >= 1) {
$seconds += $diff->d * 24 * 60 * 60;
}
if ($diff->h >= 1) {
$seconds += $diff->h * 60 * 60;
}
if ($diff->i >= 1) {
$seconds += $diff->i * 60;
}
if ($diff->s >= 1) {
$seconds += $diff->s;
}
return $diff->invert === 0 ? $seconds : -$seconds;
}
