Viewing file:  Time.php (1 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
declare(strict_types=1);
namespace ZipStream;
use DateInterval;
use DateTimeImmutable;
use DateTimeInterface;
use ZipStream\Exception\DosTimeOverflowException;
/**
* @internal
*/
abstract class Time
{
private const DOS_MINIMUM_DATE = '1980-01-01 00:00:00Z';
public static function dateTimeToDosTime(DateTimeInterface $dateTime): int
{
$dosMinimumDate = new DateTimeImmutable(self::DOS_MINIMUM_DATE);
if ($dateTime->getTimestamp() < $dosMinimumDate->getTimestamp()) {
throw new DosTimeOverflowException(dateTime: $dateTime);
}
$dateTime = DateTimeImmutable::createFromInterface($dateTime)->sub(new DateInterval('P1980Y'));
[$year, $month, $day, $hour, $minute, $second] = explode(' ', $dateTime->format('Y n j G i s'));
return
((int) $year << 25) |
((int) $month << 21) |
((int) $day << 16) |
((int) $hour << 11) |
((int) $minute << 5) |
((int) $second >> 1);
}
}
|