note 119227 added to dateinterval.format

I was doing this: $endDate->diff($startDate)->format('%a’) to get the number of the days between the end date and the start date. This is correct, but if I subtract 2016-04-23 00:00:00 to 2016-04-02 09:39:01 (note that in only one of the datetime values we have the time) the result is 21 (and not 20 as I expected). This is because the result of the diff is 20 days AND 14 hours, 20 mins and 59 secs. If you use the %a to get the days from a dateinterval, it will round the days (and if the hours are greater than 12, it will round days up). So, DO NOT USE the %a formatting to get the difference in days between 2 datetime unless you are 100% sure that both the Datetime objects don't have the time. You can solve easily with $valueDate->diff($startDate)->days that will return only the days in a dateinterval (without the fuc***g rounding). ---- Server IP: 72.52.91.14 Probable Submitter: 79.173.168.75 ---- Manual Page -- http://php.net/manual/en/dateinterval.format.php Edit -- https://master.php.net/note/edit/119227 Del: integrated -- https://master.php.net/note/delete/119227/integrated Del: useless -- https://master.php.net/note/delete/119227/useless Del: bad code -- https://master.php.net/note/delete/119227/bad+code Del: spam -- https://master.php.net/note/delete/119227/spam Del: non-english -- https://master.php.net/note/delete/119227/non-english Del: in docs -- https://master.php.net/note/delete/119227/in+docs Del: other reasons-- https://master.php.net/note/delete/119227 Reject -- https://master.php.net/note/reject/119227 Search -- https://master.php.net/manage/user-notes.php