Question

How can we find how many months passed by particular date to current date time, concidering the days per month (ex:-January 31, Feb 28/29 ) using php.
I tried with
diff()
function
not solve my problem. Because it counts how many 30 day months passed.

Answer 1

Just do it the human way; subtract the months and add one if the day falls before today.

$timestamp = strtotime('January 28');

list($old_year, $old_month, $old_day) = explode('-', date('Y-m-d', $timestamp));
list($now_year, $now_month, $now_day) = explode('-', date('Y-m-d'));

$months_ago = 12 * ($now_year - $old_year) + $now_month - $old_month;
if ($old_month < $now_month && $old_day < $now_day) {
    ++$months_ago;
}

echo $months_ago;