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run code in 150+ php & hhvm versions
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<?php $date = new Datetime('2012-12-31', new DatetimeZone('UTC')); echo $date->format('r'); $date->modify('+1 month'); echo ' '; echo $date->format('r');
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Mon, 31 Dec 2012 00:00:00 +0000 Thu, 31 Jan 2013 00:00:00 +0000
Output for 5.0.0 - 5.1.6
Fatal error: Class 'Datetime' not found in /in/JN1mq on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/JN1mq on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/JN1mq on line 3