3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo extends DateTime { const ATOM = 'Y-m-d'; } echo (new DateTime())->format(DateTime::ATOM), PHP_EOL; echo (new Foo())->format(Foo::ATOM);
Output for 5.6.28, 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
2016-02-07T11:17:25+01:00 2016-02-07
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 2016-02-07T11:17:25+01:00 2016-02-07
Output for 7.3.32 - 7.3.33, 8.0.13
2016-02-07T10:17:25+00:00 2016-02-07
Output for 7.0.6
2016-05-21T15:10:55+02:00 2016-05-21
Output for 7.0.5
2016-04-03T10:55:53+02:00 2016-04-03
Output for 7.0.4
2016-03-10T23:07:55+01:00 2016-03-10
Output for 7.0.3
2016-03-19T00:57:23+01:00 2016-03-19
Output for 7.0.2
2016-03-23T06:54:00+01:00 2016-03-23
Output for 7.0.1
2016-03-24T09:54:01+01:00 2016-03-24
Output for 7.0.0
2016-03-27T11:42:20+02:00 2016-03-27
Output for 5.6.21
2016-05-02T17:52:56+02:00 2016-05-02
Output for 5.6.20
2016-04-10T09:59:16+02:00 2016-04-10
Output for 5.6.19
2016-03-08T07:18:18+01:00 2016-03-08
Output for 5.6.18
2016-03-15T16:21:11+01:00 2016-03-15
Output for 5.6.17
2016-03-20T04:00:04+01:00 2016-03-20
Output for 5.6.16
2016-03-28T12:32:18+02:00 2016-03-28
Output for 5.6.15
2016-03-29T13:21:31+02:00 2016-03-29
Output for 5.6.14
2016-04-14T19:05:42+02:00 2016-04-14
Output for 5.6.13
2016-04-15T19:48:10+02:00 2016-04-15
Output for 5.6.12
2016-04-20T10:41:43+02:00 2016-04-20
Output for 5.6.11
2016-04-24T16:43:34+02:00 2016-04-24
Output for 5.6.10
2016-04-25T18:48:33+02:00 2016-04-25
Output for 5.6.9
2016-04-28T00:21:50+02:00 2016-04-28
Output for 5.6.8
2016-04-30T08:40:44+02:00 2016-04-30
Output for 5.5.35
2016-05-23T04:53:01+02:00 2016-05-23
Output for 5.5.34
2016-04-11T12:14:37+02:00 2016-04-11
Output for 5.5.33
2016-03-09T10:26:10+01:00 2016-03-09
Output for 5.5.32
2016-03-17T20:23:26+01:00 2016-03-17
Output for 5.5.31
2016-03-21T07:15:57+01:00 2016-03-21
Output for 5.5.30
2016-04-01T15:12:22+02:00 2016-04-01
Output for 5.5.29
2016-04-17T10:00:44+02:00 2016-04-17
Output for 5.5.28
2016-04-21T13:38:26+02:00 2016-04-21
Output for 5.5.27
2016-04-22T15:12:16+02:00 2016-04-22
Output for 5.5.26
2016-04-26T21:32:03+02:00 2016-04-26
Output for 5.5.25
2016-04-29T05:00:29+02:00 2016-04-29
Output for 5.5.24
2016-05-24T11:33:48+02:00 2016-05-24

preferences:
257.81 ms | 401 KiB | 213 Q