Online PHP editor | output for 233hp

@ 2017-03-28T10:47:05Z

<?php

date_default_timezone_set('Europe/Madrid');

$start = new DateTime('2017-03-26 01:59:00');
$increments = array(
    '+60 minutes'   => '2017-03-26 03:59:00',
    '+61 minutes'   => '2017-03-26 04:00:00',
);

echo 'Start:        ' . $start->format('r') . PHP_EOL;
$local = $start->getTimezone();
$utc = new DateTimeZone('UTC');
foreach ($increments as $increment => $expected_string) {
    echo '>>> ' . $increment . PHP_EOL;

    $expected_end = new DateTime($expected_string);
    $actual_end = clone $start;
    $actual_end->setTimezone($utc);
    $actual_end->modify($increment);
    $actual_end->setTimezone($local);

    echo 'Expected end: ' . $expected_end->format('r') . PHP_EOL;
    echo 'Actual end:   ' . $actual_end->format('r') . PHP_EOL;
    echo ($expected_end->format('c')===$actual_end->format('c')  ? 'OK' : 'ERROR') . PHP_EOL;
    echo PHP_EOL;
}

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Start: Sun, 26 Mar 2017 01:59:00 +0100 >>> +60 minutes Expected end: Sun, 26 Mar 2017 03:59:00 +0200 Actual end: Sun, 26 Mar 2017 03:59:00 +0200 OK >>> +61 minutes Expected end: Sun, 26 Mar 2017 04:00:00 +0200 Actual end: Sun, 26 Mar 2017 04:00:00 +0200 OK
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Start: Sun, 26 Mar 2017 01:59:00 +0100 >>> +60 minutes Expected end: Sun, 26 Mar 2017 03:59:00 +0200 Actual end: Sun, 26 Mar 2017 03:59:00 +0200 OK >>> +61 minutes Expected end: Sun, 26 Mar 2017 04:00:00 +0200 Actual end: Sun, 26 Mar 2017 04:00:00 +0200 OK

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