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<?php $utc = new DateTimeZone('UTC'); $london = new DateTimeZone('Europe/London'); $test1 = new \DateTime('2018-01-31', $utc); $test2 = new \DateTime('2018-04-08', $london); $dateDiff = $test1->diff($test2); echo $dateDiff->y;
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.9, 8.1.14 - 8.1.34, 8.2.1 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
0
Output for 8.1.10 - 8.1.13, 8.2.0
-1

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