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<?php
declare(strict_types=1);
/**
* This file is part of Esi\Clock.
*
* (c) Eric Sizemore <[email protected]>
* This source file is subject to the MIT license. For the full copyright and
* license information, please view the LICENSE file that was distributed with
* this source code.
*/
namespace Esi\Clock;
use DateTimeImmutable;
use DateTimeInterface;
use DateTimeZone;
* A clock frozen in time.
final class FrozenClock implements ClockInterface
{
public function __construct(private DateTimeImmutable $now) {}
* @inheritDoc
public function __toString(): string
return \sprintf(
'[FrozenClock(): unixtime: %s; iso8601: %s;]',
$this->now()->format('U'),
$this->now()->format(DateTimeInterface::ISO8601_EXPANDED)
);
}
* Adjusts the FrozenClock time based on a given modifier.
* @see https://www.php.net/manual/en/datetime.formats.php
* @see https://www.php.net/manual/en/class.datemalformedstringexception.php
public function adjustTo(string $withModifier): void
$this->now = $this->now->modify($withModifier);
public function now(): DateTimeImmutable
return $this->now;
* Sets the FrozenClock to a specific time.
public function setTo(DateTimeImmutable $now): void
$this->now = $now;
public static function fromUtc(): FrozenClock
return new FrozenClock(
new DateTimeImmutable('now', new DateTimeZone('UTC'))
ericsizemore /
clock
