PHP Difference Between Two Dates In Years, Months And Days

To calculate the difference between two dates in years, months and days in PHP, we have to use three functions

1. strtotime() function
2. floor() function()
3. abs() function

Read Here, strtotime, floor and abs functions in PHP

Let us consider two dates and store in variables.
$date1 = ‘2016–06–01’;
$date2 = ‘2020–08–08’;

Now, the difference between these two dates will be

$diff = abs(strtotime($date2)-strtotime($date1));

To calculate the year, divide the difference by total seconds in the year that is 365*60*60*24

Now, the year between these two dates will be

$years = floor($diff / (365*60*60*24));

To calculate the month, subtract the year from the date difference and divide the result by total seconds in a month that is 30*60*60*24

Now, the month between these two dates will be

$months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24));

To calculate the day, subtract the date difference from the year and month and divide the result by total seconds in a day that is 60*60*24

Now, the days between these two dates will be