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<?php $current = '20130117010101'; $dateString = '20130115000000'; $preserveAfterDate = new DateTime($current); $preserveAfterDate->setTime(0,0,0); $preserveAfterDate->sub(new DateInterval('P2D')); var_dump($preserveAfterDate->format('Y-m-d H:i:s')); $fileDate = new DateTime($dateString); var_dump($fileDate->format('Y-m-d H:i:s')); $difference = $preserveAfterDate->diff($fileDate); var_dump($difference->format('%r%a'));
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 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
string(19) "2013-01-15 00:00:00" string(19) "2013-01-15 00:00:00" string(1) "0"
Output for 5.3.0 - 5.3.2
string(19) "2013-01-15 00:00:00" string(19) "2013-01-15 00:00:00" string(1) "2"
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::sub() in /in/ENNJ0 on line 7
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/ENNJ0 on line 5
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/ENNJ0 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/ENNJ0 on line 5

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