PHP Strtotime for explanation

$t = ' 2011-01-31 17:21:22 ';
Print_r (Array (
Date (' Y year m month ', Strtotime ($t)),
Date (' Y year m month ', Strtotime (' + 1 month ', Strtotime ($t))),
Date (' Y year m month ', Strtotime (' + 2 month ', Strtotime ($t))),
));
Exit
Why is it all March?

Reply to discussion (solution)

$t time is January 31 February not so the second element of the array is also March.

February No 31st
So January 31 plus one months will be March.

$t = ' 2011-01-28 17:21:22 '; Change to 28th Print_r (Array (            ' Y year M month ', Strtotime ($t)),            date (' Y year m month ', Strtotime (' + 1 month ', Strtotime ($t))),            date (' Y year m month ', Strtotime (' + 2 month ', Strtotime ($t))));

Array (    [0] = January 2011    [1] = February 2011    [2] = March 2011)

Strtotime is a feature with auto-correct date

Print_r (Array (            the date (' Y year m D Day ', Strtotime (' 2011-02-31 ')),            date (' Y year m D Day ', Strtotime (' 2011-04-31 ')),            Date (' Y year m D Day ', Strtotime (' 2011-06-31 ')));

Array (    [0] = March 03, 2011    [1] = May 01, 2011    [2] = July 01, 2011)

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