Re: I would have guessed Oct 31 would be evil...

Hi Chris, I don't think that the date of 31Oct is evil - particularly not when you seem to be ground-hogging on the 28th! Running your code on my system, under WinNT produces the same result. I'll take a flying leap into the void and suggest that the reason this date (and the corresponding for last year) is causing a problem is because it was the day that many parts of the world (including CA) changed their clocks from summer time to whatever - and some others vice-versa. In other words it was a day longer/shorter than 24 hours! In employing a string to hold a date, and then using a time function to convert it to a timestamp before adding twenty-four hours worth of seconds, which is finally formed back into a string representation of the date; you are somewhat stretching the bounds. I guess the continuously repeating date is a 'feature' of time-travel which one hopes will not make it through beta-testing and into the shrink-wrapped final product... As my old grade-school teacher used to say "you can't add apples and oranges" - never heard of a blender lady!? The following code offers two 'virtues': (1) it sticks to a unit of days (the metric of the 'base' string format), and (2) it exhibits no groundhog day phenomenon:- while ($currDate <= $endDate) { echo "$currDate ~".strtotime($currDate)."~".date('Ymd', strtotime($currDate))."~<br>\n"; $currDate = date('Ymd', strtotime($currDate+1)); } (extra debug output for fun and enjoyment...) I'll leave you to test out the theory further, and once researched, if you feel it appropriate, to submit a bug report. Regards, =dn ----- Original Message ----- From: "Chris Hobbs" <chobbs@silvervalley.k12.ca.us> To: <php-general@lists.php.net> Sent: 07 November 2001 19:48 Subject: [PHP] I would have guessed Oct 31 would be evil... > OK, this is weird! Simplified this to it's bare essentials: > > $startDate = "20011031"; > $endDate = "20011115"; > $currDate = $startDate; > > while ($currDate <= $endDate) { > echo "$currDate<br>\n"; > $currDate = date('Ymd', strtotime($currDate)+(24*3600)); > } > echo "Done!"; > > This works the way it's written. However, change the startDate so that > 20011028 is included in the loop, and it never advances past Oct. 28. > Any other 28th of the month seems to work fine. > > Oddly enough, Oct. 29th of last year causes the same problem. What have > I done wrong? > > -- > _______ ___ _ ____ _____ > Chris Hobbs / ____\ \ / / | | |/ ___\| __ \ > Head Geek | (___ \ \ / /| | | | (___ | | | | > WebMaster \___ \ \ \/ / | | | |\___ \| | | | > PostMaster ____) | \ / | |__| |____) | |__| | > \____/ \/ \____/ \____/|_____/ > http://www.silvervalley.k12.ca.us > chobbs@silvervalley.k12.ca.us > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >