ID: 40271 Updated by: [EMAIL PROTECTED] Reported By: slomo at sonarkollektiv dot de -Status: Open +Status: Bogus Bug Type: Date/time related Operating System: Mac OS X 10.4.8 PHP Version: 5.2.0 New Comment:
code : >strtotime('1999-01-04 UTC + 1 week last monday'); >strtotime('1999-01-11 UTC + 0 week last monday'); >actual result: >916012800 >915408000 >expected result: >at least the same value Your expectation is wrong. 1999-01-04 is Monday, so "last monday" for 1999-01-04 is "1999-01-04 minus 1 week" and "last monday" 1999-01-11 is 1999-01-04. >expected result: >at least always the same gap (604800 is a week), but it >differs See previous explanation. No bug here. Previous Comments: ------------------------------------------------------------------------ [2007-01-29 13:20:01] slomo at sonarkollektiv dot de Just to point out why I think somethings weird, compare the previous code and result to this one. code: strtotime('2000-01-04 UTC + 1 week last monday'); strtotime('2000-01-11 UTC + 0 week last monday'); actual result: 947462400 947462400 expected result: 947462400 947462400 > same value, fine. And the same for code: strtotime('2000-01-04 UTC + 0 week last monday'); strtotime('2000-01-04 UTC + 1 week last monday'); strtotime('2000-01-04 UTC + 2 week last monday'); actual result: 946857600 947462400 948067200 expected result: 946857600 947462400 948067200 > always the same gap (604800 is a week), fine. ------------------------------------------------------------------------ [2007-01-29 12:22:42] slomo at sonarkollektiv dot de code : strtotime('1999-01-04 UTC + 1 week last monday'); strtotime('1999-01-11 UTC + 0 week last monday'); actual result: 916012800 915408000 expected result: at least the same value Another example code : strtotime('1999-01-04 UTC + 0 week last monday'); strtotime('1999-01-04 UTC + 1 week last monday'); strtotime('1999-01-04 UTC + 2 week last monday'); actual result: 914803200 916012800 916617600 expected result: at least always the same gap (604800 is a week), but it differs ------------------------------------------------------------------------ [2007-01-29 12:02:37] slomo at sonarkollektiv dot de thanks [EMAIL PROTECTED], that's brilliant :) and it seems to be bug free. I still think my code produced a bug in PHP and I do not get why this happens. ------------------------------------------------------------------------ [2007-01-29 12:01:58] [EMAIL PROTECTED] Could you please just paste something like this: code : strftime("<something>") actual result: <something you can actually see> expected result: <something you expected to see> I really don't think those functions, cycles and HTML output are required to demonstrate a problem with strftime(). ------------------------------------------------------------------------ [2007-01-29 11:55:33] slomo at sonarkollektiv dot de My "Reproduce code" was quite complete. Here it is again, this time it starts with <?php and ends with ?> :-) I expect: using strtotime("last monday") should behave always the same. If you run my code you will see that it differs depending on the given date. My code is not complex, so I hope you get the point very soon. This "Day of week items" are a little bit confusing, because if you have e.g. a $date for a monday and state strtotime ("$date last monday"), you get $date. I assume this is correct. Anyway I would think it's just my fault if my function would be "off 1 week" for the whole year if the date is a monday every time. But this happens only for the first week, in any other week the result is like I learned strtotime() is doing it. Can you follow? <?php function MondayOfWeek($year, $week) { return strtotime("$year-01-04 UTC + " . ($week-1) . ' week last monday'); } for ($y = 1998; $y < 2012; $y++) { for ($w = 1; $w < 53; $w++) { $start = MondayOfWeek($y, $w); $end = strtotime("+6 day", $start); echo "KW $w/$y: " . gmstrftime('%A, %x %X', $start) . ' - ' . gmstrftime('%A, %x %X', $end) . ' - reverse check (week/year): ' . gmstrftime('%V/%G', $start) . "<br />\n"; if ($w != gmstrftime('%V', $start) || $y != gmstrftime('%G', $start)) { echo '<span style="color: red;">Oops, EXCEPTIONAL ERROR!</span>' . "<br />\n"; } } echo "<hr>\n"; } ?> best regards, slomo ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/40271 -- Edit this bug report at http://bugs.php.net/?id=40271&edit=1