PHP code example of beste / clock

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

beste / clock example snippets

# examples/system_clock.php

use Beste\Clock\SystemClock;

$clock = SystemClock::create();

printf("On your system, the current date and time is %s\n", $clock->now()->format('Y-m-d H:i:s T (P)'));

date_default_timezone_set('America/Los_Angeles');

printf("Now it's %s\n", $clock->now()->format('Y-m-d H:i:s T (P)'));

date_default_timezone_set('Europe/Berlin');

printf("Now it's %s\n", $clock->now()->format('Y-m-d H:i:s T (P)'));

# examples/localized_clock.php

use Beste\Clock\LocalizedClock;

$berlin = LocalizedClock::in('Europe/Berlin');
$denver = LocalizedClock::in(new DateTimeZone('America/Denver'));

printf("Berlin: %s\n", $berlin->now()->format('Y-m-d H:i:s T (P)'));
printf("Denver: %s\n", $denver->now()->format('Y-m-d H:i:s T (P)'));

# examples/utc_clock.php

use Beste\Clock\UTCClock;

$clock = UTCClock::create();

$anotherTimeZone = 'Africa/Casablanca';

date_default_timezone_set($anotherTimeZone);

printf("The system time zone is %s.\n", $anotherTimeZone);
printf("The clock's time zone is %s.\n", $clock->now()->getTimezone()->getName());

# examples/frozen_clock.php

use Beste\Clock\FrozenClock;
use Beste\Clock\SystemClock;

$frozenClock = FrozenClock::withNowFrom(SystemClock::create());

printf("\nThe clock is frozen at %s", $frozenClock->now()->format('Y-m-d H:i:s T (P)'));
printf("\nLet's wait a second…");
sleep(1);
printf("\nIt's one second later, but the clock is still frozen at %s", $frozenClock->now()->format('Y-m-d H:i:s T (P)'));

$frozenClock->setTo($frozenClock->now()->modify('-5 minutes'));
printf("\nAfter turning back the clock 5 minutes, it's %s", $frozenClock->now()->format('Y-m-d H:i:s T (P)'));

# examples/minute_clock.php

use Beste\Clock\FrozenClock;
use Beste\Clock\MinuteClock;

$frozenClock = FrozenClock::at(new DateTimeImmutable('01:23:45'));
$clock = MinuteClock::wrapping($frozenClock);

printf("For %s, the minute clock returns %s\n",
    $frozenClock->now()->format('H:i:s'),
    $clock->now()->format('H:i:s')
);

$frozenClock->setTo($frozenClock->now()->modify('+10 seconds')); // 01:23:55

printf("For %s, the minute clock still returns %s\n",
    $frozenClock->now()->format('H:i:s'),
    $clock->now()->format('H:i:s')
);

# examples/wrapping_clock.php

use Beste\Clock\WrappingClock;

// Create a frozen $now so that we can test the wrapping clock.
$now = new DateTimeImmutable('2012-04-24 12:00:00');

// Create an object that is NOT a clock, but has a now() method returning the frozen $now.
$clock = new class($now) {
    private \DateTimeImmutable $now;

    public function __construct(\DateTimeImmutable $now)
    {
        $this->now = $now;
    }

    public function now(): \DateTimeImmutable
    {
        return $this->now;
    }
};

// We can now wrap the object in a clock.
$wrappedClock = WrappingClock::wrapping($clock);

assert($now->format(DATE_ATOM) === $wrappedClock->now()->format(DATE_ATOM));