Bug #51737 [Opn->Asn]: Having a bug when using date_diff($t1,$t2)

Edit report at http://bugs.php.net/bug.php?id=51737&edit=1 ID: 51737 Updated by: aharvey@php.net Reported by: iggukk at gmail dot com Summary: Having a bug when using date_diff($t1,$t2) -Status: Open +Status: Assigned Type: Bug -Package: Date/time related +Package: Documentation problem Operating System: Win XP PHP Version: 5.3.2 -Assigned To: +Assigned To: aharvey New Comment: Not a bug, since you probably want %a (which is the total number of days in the interval) rather than %d. %d only shows the number of days left over after date_diff() has calculated the number of months and years: in your first example, the interval is basically "1 month 0 days", so %d returns 0. (If you try "%m month(s) %d day(s)" as the format string, that will probably be a bit clearer.) Nevertheless, the documentation could probably be a touch clearer on this point. Morphing into a documentation bug; I'll see if I can make it a bit more obvious in one of the examples what %d does. Previous Comments: ------------------------------------------------------------------------ [2010-05-04 11:04:01] iggukk at gmail dot com Huh, sorry about that, and thanks for answering so quickly. echo $interval->format('%R%d days'); simply from the example on php manual. Just tried to feed the dates in different formats like 12.04.2010 and 12.03.2010, (instead of 2010-04-12) it seems to give the same result in final. ------------------------------------------------------------------------ [2010-05-04 10:57:43] aharvey@php.net The test script you've provided doesn't work, since echoing a DateInterval object isn't supported. How are you actually outputting $interval? ------------------------------------------------------------------------ [2010-05-04 10:33:23] iggukk at gmail dot com Description: ------------ Hi, Sorry if not posting this bug in the correct section. I'm currently having a bug when using date_diff(). Seems that when the "day" part of the dates is the same on both dates compared, the function returns "0 Days" instead of 30 or some Days. Test script: --------------- $datetime1 = date_create('2010-03-08'); $datetime2 = date_create('2010-04-08'); $interval = date_diff($datetime1,$datetime2); echo $interval; //=> returns "+0 Days" // //Whereas // $datetime1 = date_create('2010-03-08'); $datetime2 = date_create('2010-04-07'); $interval = date_diff($datetime1,$datetime2); echo $interval; //Will return "+30 Days" Expected result: ---------------- Should return "a whole month" interval like +31 Days in that particular case. Actual result: -------------- returns +0 Days ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51737&edit=1