There is actually already a bug for about this: https://bugs.php.net/bug.php?id=54909
I ran into this several months ago when I upgraded a project from 5.3.2 to 5.5 and found that in 5.3.6 the behavior had changed. I ended up working around it in my code. It was definitely annoying but had we upgraded PHP versions sooner I wouldn't have had any issue with this in the time crunch I had. Our unit tests around that code, while complex, became that much better to actually account for the finer details of date/time. - Dave On 5/4/15 12:49 PM, Stelian Mocanita wrote: > I think the best approach would be to open a bug under https://bugs.php.net/ > since this does > not look like intended behavior. > > Regards, > Stelian > > On Mon, May 4, 2015 at 5:33 PM, Markus Fasselt <markus.fass...@gmail.com> > wrote: > >> Hi, >> >> when I modify a DateTime object and add or subtract weekdays, it happens >> that the current time is reset to 00:00:00. >> >> This effect does not occur when I add days. I also experienced the same >> behavior with strototime. >> >>> <?php >>> >>> $a = new DateTime(strtotime('2015-05-04 17:22')); >>> var_dump((string) $a->format('Y-m-d H:i:s')); // 2015-05-04 17:22:00 >>> $a->modify('+1 day'); >>> var_dump((string) $a->format('Y-m-d H:i:s')); // 2015-05-05 17:22:00 >>> $a->modify('+1 weekday'); >>> var_dump((string) $a->format('Y-m-d H:i:s')); 2015-05-06 00:00:00 >>> >>> var_dump(date('Y-m-d H:i:s', strtotime('+1 weekday'))); // 2015-05-05 >> 00:00:00 >> >> http://3v4l.org/554H4 >> >> There seems to be slighly different behavior between the different PHP >> versions. strotime always had this behavior. DateTime::modify() worked >> correct until PHP 5.3.5. >> >> I don't know if this behavior was changed on purpose (I didn't find >> something on it). If so, why? Otherwise I would suggest to fix this, as >> it is really confusing. >> >> Regards, >> Markus >> >> -- >> PHP Internals - PHP Runtime Development Mailing List >> To unsubscribe, visit: http://www.php.net/unsub.php >> > -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
