Clock

Provides an immutable Clock implementation for PHP

Installation

You can install the package via composer:

composer require ghostwriter/clock

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Usage

<?php

// Internally uses SystemClock::new(new DateTimeZone(date_default_timezone_get()));

date_default_timezone_set('America/Los_Angeles');
$systemClock = SystemClock::new();
$systemClock->now(); // DateTimeImmutable
$systemClock->now()->getTimezone()->getName(); // America/Los_Angeles

date_default_timezone_set('America/New_York');
$systemClock = SystemClock::new();
$systemClock->now(); // DateTimeImmutable
$systemClock->now()->getTimezone()->getName(); // America/New_York

$localizedClock = LocalizedClock::new();
$localizedClock->now(); // DateTimeImmutable
$localizedClock->now()->getTimezone()->getName(); // UTC

$localizedClock = LocalizedClock::new(new DateTimeZone('Africa/Addis_Ababa'));
$localizedClock->now(); // DateTimeImmutable
$localizedClock->now()->getTimezone()->getName(); // Africa/Addis_Ababa

$frozenClock = FrozenClock::new(new DateTimeImmutable('now', new DateTimeZone('UTC')));
$frozenClock->now(); // DateTimeImmutable
$frozenClock->now()->getTimezone()->getName(); // UTC

API

interface ClockInterface
{
    public function freeze(): FrozenClockInterface;

    public function now(): DateTimeImmutable;
}

interface FrozenClockInterface extends ClockInterface
{
    public static function new(DateTimeImmutable $dateTimeImmutable): self;
}

interface LocalizedClockInterface extends ClockInterface
{
    public static function new(DateTimeZone $dateTimeZone): self;
}

interface SystemClockInterface extends ClockInterface
{
    public static function new(): self;
}

Changelog

Please see CHANGELOG.md for more information what has changed recently.

Security

If you discover any security related issues, please email [email protected] or create a Security Advisory instead of using the issue tracker.

License

The BSD-3-Clause. Please see License File for more information.