Bug #66980 [Fbk->Opn]: Last day of Fenruary

Edit report at https://bugs.php.net/bug.php?id=66980&edit=1 ID: 66980 User updated by: tm8544 at hotmail dot com Reported by: tm8544 at hotmail dot com Summary: Last day of Fenruary -Status: Feedback +Status: Open Type: Bug Package: Date/time related Operating System: Windows 7 PHP Version: 5.5.10 Block user comment: N Private report: N New Comment: This bug depends on the date when you run the snippet. Optional second parameter of strtotime ( string $time [, int $now = time() ] ) plays key role in this bug. As I wrote in the first comment, I noticed this bug at 29th of March. If I run the code today, there seems to be no problem. Try these two ways to test this bug: 1) change your computer's date to 29.3.2014 and run the snippet, or 2) replace line 6 of the snippet with the following: echo $month ." - " . date("j.n.Y", strtotime($string, mktime(0,0,0,3,29,2014))); You might also be interested to test with changing line 6 to echo $month ." - " . date("j.n.Y", strtotime($string, mktime(0,0,0,3,31,2014))); Besides February, note also April, June, September and November. Previous Comments: ------------------------------------------------------------------------ [2014-04-02 12:07:54] ab@php.net Hi, thanks for reporting. I cannot reproduce it with 5.5.10 or 5.5-dev branch with your snippet. Both first and last day look correct. Could you please give some more details on how you invoke it, maybe timezone and so on? To exclude it's a configuration error maybe you could try it on some other machine. Thanks. ------------------------------------------------------------------------ [2014-03-29 08:43:23] tm8544 at hotmail dot com As you can see, this problem was produced on 29.3.2014. I assume that if it was tested on 31.3.2014, also last days of april, june, september and november would have been wrong. It is possible to get around this by using strtotime($string, mktime(0,0,0,date("n"),1)) instead of strtotime($string) in line 6 of the test script, but my point is that "last day of february" is a known fact for each year, and the result of the code shall not depend on the date when it is executed. ------------------------------------------------------------------------ [2014-03-29 07:57:48] tm8544 at hotmail dot com Description: ------------ Code in test script does not correctly produce the last day of february. Also, if you change the test script to $string = "first day of " . $month; also the first day of february is wrong (1.3.2014) For all other months, it works as expected. Test script: --------------- <?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)) . "\r\n"; } ?> Expected result: ---------------- january - 31.1.2014 february - 28.2.2014 march - 31.3.2014 april - 30.4.2014 may - 31.5.2014 june - 30.6.2014 july - 31.7.2014 august - 31.8.2014 september - 30.9.2014 october - 31.10.2014 november - 30.11.2014 december - 31.12.2014 Actual result: -------------- january - 31.1.2014 february - 31.3.2014 march - 31.3.2014 april - 30.4.2014 may - 31.5.2014 june - 30.6.2014 july - 31.7.2014 august - 31.8.2014 september - 30.9.2014 october - 31.10.2014 november - 30.11.2014 december - 31.12.2014 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66980&edit=1