<?php $date = new DateTime(); $startDate = new DateTime("2016/11/24"); $startDate->add(new DateInterval('P12M')); $diff = $date->diff($startDate); var_dump($diff); $surplus = $diff->d > 0 ? 0 : 1; echo ($diff->y * 12 + $diff->m + $surplus); //echo $date->format('Y-m-d H:i:s'); //echo $startDate->format('Y-m-d H:i:s'); ?>
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