Bug #66980 [Nab]: Last day of Fenruary

Edit report at https://bugs.php.net/bug.php?id=66980&edit=1 ID: 66980 Updated by: ab@php.net Reported by: tm8544 at hotmail dot com Summary: Last day of Fenruary Status: Not a bug Type: Bug Package: Date/time related Operating System: Windows 7 PHP Version: 5.5.10 Block user comment: N Private report: N New Comment: > As I wrote in the first comment, I noticed this bug at 29th of March. When some timestamp is passed, it's logic to have precedence. With no timestamp like this date("j.n.Y", strtotime('last day of february')) it takes the current year and the result is fine, too. Either it's today or on March 29th, I don't see how it differs from an arbitrary day of year. But if you pass March 29 explicitly, it has precedence over 'last day of february'. Thanks Previous Comments: ------------------------------------------------------------------------ [2014-04-02 16:46:59] tm8544 at hotmail dot com In time functions, 'first' and 'next' provide the same relative but it this always right? Next and previous should produce relative values, all others are not so relative. /* The relative text table. */ static timelib_lookup_table const timelib_reltext_lookup[] = { { "first", 0, 1 }, { "next", 0, 1 }, { "second", 0, 2 }, { "third", 0, 3 }, { "fourth", 0, 4 }, { "fifth", 0, 5 }, { "sixth", 0, 6 }, { "seventh", 0, 7 }, { "eight", 0, 8 }, { "eighth", 0, 8 }, { "ninth", 0, 9 }, { "tenth", 0, 10 }, { "eleventh", 0, 11 }, { "twelfth", 0, 12 }, { "last", 0, -1 }, { "previous", 0, -1 }, { "this", 1, 0 }, { NULL, 1, 0 } }; ------------------------------------------------------------------------ [2014-04-02 16:26:28] tm8544 at hotmail dot com As I already said in the first comment, there are ways to get around this problem, you just have to be aware that strtotime() behaves funny in certain conditions. But again, in my opinion "last day of february (or any month)" is not a relative date which depends on how many days any month has, or what is the current date. Last day of any month should be considered as an absolute date. For February, you naturally have to take into account whether it is a leap year or not. ------------------------------------------------------------------------ [2014-04-02 15:34:18] ab@php.net It makes more sense to use the 1st of a month, so here's your snippet modified to work correctly <?php $months = array("january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"); foreach ($months as $i => $month) { $string = "last day of " . $month; echo $month ." - " . date("j.n.Y", strtotime($string, mktime(0,0,0,($i+1),1,2014))) . "\r\n"; } ------------------------------------------------------------------------ [2014-04-02 15:28:45] ab@php.net Wait a minute, but that is correct. It just moves up to the next valid "last day of ". The same way if you try echo date("j.n.Y", mktime(0,0,0,2,29,2014)) . "\r\n"; you will get 1.3.2014 because Feb 2014 has 28 days, not 29. Btw. the behavior is consistent with Linux as well. Thanks ------------------------------------------------------------------------ [2014-04-02 15:05:56] ab@php.net Yes, now I can reproduce it with the change you mentioned, thanks. <?php $months = array("january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december"); foreach ($months as $month) { $string = "last day of " . $month; echo $month ." - " . date("j.n.Y", strtotime($string, mktime(0,0,0,3,29,2014))) . "\n"; } ------------------------------------------------------------------------ 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 https://bugs.php.net/bug.php?id=66980 -- Edit this bug report at https://bugs.php.net/bug.php?id=66980&edit=1