什么是从给定日期php获得下个月和上个月的最佳解决方案

Question

I want to get next and previous month from given date. this is my code.

$month = '2011-01-20';

$prevMOnth = funP($month); $nextMonth = funN($month);

what is best solution to do that.

Answer 1

$next_month_ts = strtotime('2011-01-20 +1 month');
$prev_month_ts = strtotime('2011-01-20 -1 month');

$next_month = date('Y-m-d', $next_month_ts);
$prev_month = date('Y-m-d', $prev_month_ts);