Carbon format only years and days with leap year

Question

I'm trying to get diff between 2 dates but only with years and days but adding months to days, example:

$date1 = \Carbon\Carbon::parse(02.02.2021); 
$date2 = \Carbon\Carbon::parse(01.01.2000);
$date2->diff($date1)->format('Y d');

But if I use format without month, it will be omitted and won't be added to days.

21 years, 1 day

But real is

21 years, 1 month, 1 day

So I want for example

21 years, 32 days

So I did:

$days = $date2->diffInDays($date1)
$years = intval($days/ 365);
$days_minusYears = $days % 365;

$diff = "$years"."y"." $days_minusYears"."d",

Unfortunately It will skip leap years. How to do It properly?

Answer 1

check this out

$date1 = Carbon::parse("02.02.2021");
$date2 = Carbon::parse("01.01.2000");

First get difference of years between 2 dates

$y = $date2->diff($date1)->y;
        

once you get years add those years so you will have 2 dates of current year, and when you get difference of days of current year using Carbon, you will get correct days

 $date3= $date2->addYears($y);       
 

Complete code

    $date1 = Carbon::parse("02.02.2021");
    $date2 = Carbon::parse("01.01.2000");
    
    $years_total = $date2->diff($date1)->y;
    $date3= $date2->addYears($years_total); //2021-01-01 using above example
    $days_excluding_years = ($date3->diff($date1)->days);
    echo $years_total ." Years ". $days_excluding_years ." days";