note 102316 added to function.strtotime

From: Date: Tue, 08 Feb 2011 15:10:02 +0000
Subject: note 102316 added to function.strtotime
Groups: php.notes 
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Do not use PHPDateTime below!! It will make mistakes, especially with regards to leap years. $y%4 is NOT a reliable way to check for leap years. ($y%100 and $y%400 is involved aswell.) I would replace the DateNextMonth function, if i needed it, with something like this: function addMonth($orgdate) { $next_month = strtotime($orgdate . ' +1 month'); //If the month in orgdate has more days then the next month we want to use the last of the next month for all of them. $last_day_next_month = strtotime($orgdate . ' last day of next month'); return date('Y-m-d', min($next_month, $last_day_next_month)); } Trust strtotime to take care of the handling of leapyears and such instead of trying yourself. You will not make a better job. (I'm looking at you ash :) ) echo addMonth('2010-01-31'); Outputs: 2010-02-28. ---- Server IP: 69.147.83.197 Probable Submitter: 213.115.126.82 ---- Manual Page -- http://www.php.net/manual/en/function.strtotime.php Edit -- https://master.php.net/note/edit/102316 Del: integrated -- https://master.php.net/note/delete/102316/integrated Del: useless -- https://master.php.net/note/delete/102316/useless Del: bad code -- https://master.php.net/note/delete/102316/bad+code Del: spam -- https://master.php.net/note/delete/102316/spam Del: non-english -- https://master.php.net/note/delete/102316/non-english Del: in docs -- https://master.php.net/note/delete/102316/in+docs Del: other reasons-- https://master.php.net/note/delete/102316 Reject -- https://master.php.net/note/reject/102316 Search -- https://master.php.net/manage/user-notes.php

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