Get previous month value in PHP

Question

I have used the below PHP function to get the previous month,

$currmonth = date(\'m\', strtotime(\'-1 month\'));

It was working fine and I

Answer 1

If you just need to get the month number of previous month, the following should suffice.

$m = idate("m") - 1;
// wrap to previous year
if ($m < 1) {
    $m = 12 - abs($m) % 12;
}

This works with arbitrary number of subtracted months.