How to get the previous and next month?

Question

$year  = 2010;
$month = 10;

How do I get the previous month 2010-09 and next month 2010-11?

Answer 1

strftime *:-* Format the time and/or date according to locale settings. Month and weekday names and other language-dependent strings respect the current locale set with setlocale().

strftime( '%B %Y', strtotime( '+1 month', $date ) );
strftime( '%B %Y', strtotime( '-1 month', $date ) );