Calculate the number of months between two dates in PHP?

Question

Without using PHP 5.3\'s date_diff function (I\'m using PHP 5.2.17), is there a simple and accurate way to do this? I am thinking of something like the code below, but I don

Answer 1

$date1 = '2000-01-25';
$date2 = '2010-02-20';

$ts1 = strtotime($date1);
$ts2 = strtotime($date2);

$year1 = date('Y', $ts1);
$year2 = date('Y', $ts2);

$month1 = date('m', $ts1);
$month2 = date('m', $ts2);

$diff = (($year2 - $year1) * 12) + ($month2 - $month1);

If Month switched from Jan to Feb above code will return you the $diff = 1 But if you want to consider next month only after 30 days then add below lines of code along with above.

$day1 = date('d', $ts1);
$day2 = date('d', $ts2);

if($day2 < $day1){ $diff = $diff - 1; }