Online PHP editor | rfc for hGXcr

@ 2021-05-22T18:39:54Z

<?php

function incrementWithSwitch($date, $invert)
{
    $timezone = $date->getTimezone();
    $date = $date->setTimezone(new DateTimeZone('UTC'));
    $date = $date->modify(($invert ? '-' : '+') . '1 hour');
    $date = $date->setTimezone($timezone);

    $date = $date->setTime((int)$date->format('H'), 0);
    return $date;
}


function incrementWithoutSwitch($date, $invert)
{
    $date = $date->modify(($invert ? '-' : '+') . '1 hour');
    return $date;
}

$tz = new \DateTimeZone("Europe/London");
$dtWith = \DateTimeImmutable::createFromFormat("!Y-m-d H:i:s", "2021-03-28 04:00:00");
$dtWithout = $dtWith;

$invert = true;
for ($i = 0; $i < 3; $i++) {
    print "\nRound {$i}:";
    $dtWith = incrementWithSwitch($dtWith, $invert);
    $dtWithout = incrementWithoutSwitch($dtWithout, $invert);
    print "With switch:    ". $dtWith->format(\DateTime::RFC3339);
    print " :: Without switch: ". $dtWithout->format(\DateTime::RFC3339);
}

print "\n---\n";

$dtWith = \DateTimeImmutable::createFromFormat("!Y-m-d H:i:s", "2021-03-28 00:00:00");
$dtWithout = $dtWith;

$invert = false;
for ($i = 0; $i < 3; $i++) {
    print "\nRound {$i}:";
    $dtWith = incrementWithSwitch($dtWith, $invert);
    $dtWithout = incrementWithoutSwitch($dtWithout, $invert);
    print "With switch:    ". $dtWith->format(\DateTime::RFC3339);
    print " :: Without switch: ". $dtWithout->format(\DateTime::RFC3339);
}

Output for git.master, git.master_jit, rfc.property-hooks: Round 0:With switch: 2021-03-28T03:00:00+02:00 :: Without switch: 2021-03-28T03:00:00+02:00 Round 1:With switch: 2021-03-28T01:00:00+01:00 :: Without switch: 2021-03-28T03:00:00+02:00 Round 2:With switch: 2021-03-28T00:00:00+01:00 :: Without switch: 2021-03-28T03:00:00+02:00 --- Round 0:With switch: 2021-03-28T01:00:00+01:00 :: Without switch: 2021-03-28T01:00:00+01:00 Round 1:With switch: 2021-03-28T03:00:00+02:00 :: Without switch: 2021-03-28T03:00:00+02:00 Round 2:With switch: 2021-03-28T04:00:00+02:00 :: Without switch: 2021-03-28T04:00:00+02:00

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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