3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tzUK = new \DateTimeZone("Europe/London"); $tzUtc = new \DateTimeZone("UTC"); $dt = \DateTimeImmutable::createFromFormat("!Y-m-d H:i:s", "2020-10-25 00:05:00", $tzUtc); $dt = DateTime::createFromFormat('U', $dt->format('U')); print $dt->format(\DateTime::RFC3339 ." e") ."\n"; $dt->setTimeZone($tzUK); print $dt->format(\DateTime::RFC3339 ." e") ."\n"; $dt->setTime((int) $dt->format('H'), (int) $dt->format('i'), 0); print $dt->format(\DateTime::RFC3339 ." e") ."\n";
Output for 8.1.7 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
2020-10-25T00:05:00+00:00 +00:00 2020-10-25T01:05:00+01:00 Europe/London 2020-10-25T01:05:00+01:00 Europe/London
Output for 5.6.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.6
2020-10-25T00:05:00+00:00 +00:00 2020-10-25T01:05:00+01:00 Europe/London 2020-10-25T01:05:00+00:00 Europe/London
Output for 5.4.34
Fatal error: Class 'DateTimeImmutable' not found in /in/MqYN9 on line 5
Process exited with code 255.

preferences:
134.2 ms | 401 KiB | 154 Q