next and previous month from a given month in php [duplicate]

Answer 1

$mth="December";
$next_mth = Date("F", strtotime($mth . " next month"));
$pre_mth = Date("F", strtotime($mth . " last month"));

Answer 2

This should do:

$date = new DateTime();
$date->modify('+ 1 month');
print $date->format("F"); // next
$date->modify('- 2 month'); 
print $date->format("F"); // previously

Answer 3

Check this out this too a way to get those stuffs

  $mth="December";

$nxt = date('F',mktime(0,0,0,date("m", strtotime($mth))+2,null,null));
$pre = date('F',mktime(0,0,0,date("m", strtotime($mth))-0,null,null));
echo $pre.'-'.$mth.'-'.$nxt;