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<?php $date = new DateTimeImmutable('2014-05'); $date2 = $date->modify('first day of next month midnight - 1 second'); var_dump($date2->format('c')); var_dump($date2->format('U')); var_dump($date2->format('c')); var_dump($date2->getTimestamp()); var_dump($date2->format('U')); var_dump($date2->format('c'));
Output for 5.6.19 - 5.6.30, 7.0.4 - 7.0.27, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.6
string(25) "2014-05-31T23:59:59+02:00" string(10) "1401573599" string(25) "2014-05-31T23:59:59+02:00" int(1401573599) string(10) "1401573599" string(25) "2014-05-31T23:59:59+02:00"
Output for 7.3.32 - 7.3.33, 8.0.13
string(25) "2014-05-31T23:59:59+00:00" string(10) "1401580799" string(25) "2014-05-31T23:59:59+00:00" int(1401580799) string(10) "1401580799" string(25) "2014-05-31T23:59:59+00:00"
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.18, 7.0.0 - 7.0.3
string(25) "2014-05-31T23:59:59+02:00" string(10) "1401573599" string(25) "2014-05-31T23:59:59+02:00" int(1398981599) string(10) "1398981599" string(25) "2014-05-01T23:59:59+02:00"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Fatal error: Class 'DateTimeImmutable' not found in /in/5htst on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/5htst on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetimeimmutable in /in/5htst on line 2

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