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<?php function ETA($ArrivalDate){ $currentDate = new DateTime('2013-9-01'); $arrivalDate = new DateTime($ArrivalDate); $interval = $currentDate->diff($arrivalDate); return $interval->format('%m months'); } echo ETA('2013-10-01');
Output for 7.3.32 - 7.3.33, 7.4.26, 8.0.13, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 months
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30
0 months
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/vIMA6 on line 5
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/vIMA6 on line 3
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/vIMA6 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/vIMA6 on line 3

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