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<?php $date = new DateTime('2000-11-30', new DateTimeZone('Europe/London')); // 30 november; $date->add(new DateInterval('P12M')); // add 12 months var_dump($date);
Output for 5.4.30 - 5.4.45, 5.5.14 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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 - 8.3.6
object(DateTime)#1 (3) { ["date"]=> string(26) "2001-11-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(13) "Europe/London" }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.29, 5.5.0 - 5.5.13
object(DateTime)#1 (3) { ["date"]=> string(19) "2001-11-30 00:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(13) "Europe/London" }
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::add() in /in/r7KWP on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/r7KWP 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: datetime in /in/r7KWP on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/r7KWP on line 2

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