PHP resolution for Strtotime ("x month") Bug

PHP resolution for Strtotime ("-X Month") Bug

Strtotime ('-X month '); You may not get the expected results when it comes to month changes.

This is a bug in PHP:

https://bugs.php.net/bug.php?id=27793

?

For example: Current time: 2011-08-31 17:21:22

Date_default_timezone_set (' Asia/shanghai ');
$t = time ();
Print_r (Array (
??? ??? ??? Date (' Y year m month ', $t),
??? ??? ??? Date (' Y year m month ', Strtotime ('-1 month ', $t)),
??? ??? ??? Date (' Y year m month ', Strtotime ('-2 month ', $t)),
));

?>

The above code output:

Array
(
??? [0] = August 2011
??? [1] = July 2011
??? [2] = July 2011
)

And the expected result is:

Array
(
??? [0] = August 2011
??? [1] = July 2011
??? [2] = June 2011
)

?

============================================

?

Can be resolved as follows:

Date_default_timezone_set (' Asia/shanghai ');

$first _day_of_month = Date (' Y-m ', Time ()). '-01 00:00:01 ';
$t = Strtotime ($first _day_of_month);
Print_r (Array (
??? ??? ??? Date (' Y year m month ', $t),
??? ??? ??? Date (' Y year m month ', Strtotime ('-1 month ', $t)),
??? ??? ??? Date (' Y year m month ', Strtotime ('-2 month ', $t)),
));

?>

Output:

Array
(
??? [0] = August 2011
??? [1] = July 2011
??? [2] = June 2011
)

