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<?php $start = new DateTime(); $end = new DateTime('2014-09-21 00:00:00'); $diff = $start->diff($end); var_dump($diff->format('Y'));
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(1) "Y"
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/QnJ9V on line 6
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/QnJ9V 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/QnJ9V 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/QnJ9V on line 3