How to calculate the number of days between two dates using Carbon in PHP?

To calculate the number of days between two dates using Carbon in PHP, you can follow these steps:

Install Carbon using Composer:

composer require nesbot/carbon

Use the Carbon class in your PHP code:

use Carbon\Carbon;

Create two Carbon instances representing the dates you want to compare:

$date1 = Carbon::parse('2022-01-01');
$date2 = Carbon::parse('2022-01-10');

Use the diffInDays() method on one of the instances to calculate the difference in days:

$numberOfDays = $date1->diffInDays($date2);
echo $numberOfDays;

The diffInDays() method returns the number of days between the two dates as an integer. In this example, it will output 9 because there are 9 days between January 1st and January 10th, 2022.