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<?php // date_default_timezone_set('Europe/Berlin'); // you are required to set a timezone $date1 = new \DateTime('2009-08-12'); $date2 = new \DateTime('2003-04-14'); $diff = $date1->diff($date2); echo (($diff->format('%y') * 12) + $diff->format('%m')) . " full months difference";
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
75 full months difference

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