php date next month gives wrong day

Question

Why does

echo date("j/m/Y", strtotime("2015/01/31 00:00 next month"));

gives 3/03/2015 and not 28/02/2015

All I'm looking for is a todays date next month and if todays date is not valid then it'll give me the last day of next month.

possible duplicate of [Getting last month's date in php](http://stackoverflow.com/questions/1889758/getting-last-months-date-in-php) — kero, Mar 20 '15 at 16:58

score 3 · Accepted Answer · answered Mar 20 '15 at 17:05

$thisMonth = "2015-01-31 00:00";
$thisMonthDate = strtotime($thisMonth);
$nextMonthDate = strtotime($thisMonth . ' next month');
if (date('j', $thisMonthDate) !== date('j', $nextMonthDate)) {
    $nextMonthDate = strtotime(date('Y-m-d H:i:s', $nextMonthDate) . ' last day of previous month');
}
echo date('Y-m-d H:i:s', $nextMonthDate), PHP_EOL;

score 2 · Answer 2 · edited May 23 '17 at 11:43

2

What PHP is doing here is the following:

first it adds a month to your date, arriving to "2015/02/31"

then it realizes that this date does not exist, and that it is 3 days after "2015/02/28", which, translated in human terms, is "2015/03/03"

Look here for a solution to your problem, as @kingkero suggested

edited May 23 '17 at 11:43

Community

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answered Mar 20 '15 at 16:59

marcosh

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php date next month gives wrong day

2 Answers2