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run code in 150+ php & hhvm versions
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<?php $c = new DateTime("2013-05-14T12:00"); $c->modify("+1 days"); echo $c->format('c');
based on g0AUa
Output for 5.2.0 - 7.1.0
2013-05-15T12:00:00+02:00
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/u6Htj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/u6Htj 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/u6Htj on line 2