php: +1天, +3个月, strtotime(): +1 day, +3 month
比如,我现在当前时间基础上+1天:
strtotime("+1 day");
比如我现在,2014-05-01时间上 + 3个月
$s = strtotime("2014-05-01");
$d = strtotime("+3 month", $s);