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

To calculate the number of weeks between two dates using Carbon in PHP, you can use the diffInWeeks() method. Here's an example:

use Carbon\Carbon;

$startDate = Carbon::parse('2022-01-01');
$endDate = Carbon::parse('2022-03-31');

$weeks = $startDate->diffInWeeks($endDate);
echo $weeks; // Output: 13

In this example, Carbon::parse() is used to create Carbon instances for the start and end dates. diffInWeeks() is then called on the start date instance, passing the end date as the argument. This method returns the number of weeks between the two dates. Finally, echo is used to display the result, which in this case is 13 weeks.