carbon add day code example

Example 1: carbon now format

use Carbon/Carbon
Carbon::now()->format('Y-m-d H:i:s');

Example 2: add seconds to datetime carbon

Try to parse() it first:
$date = Carbon::parse($dateTime)
            ->addSeconds($seconds)
            ->format('Y-m-d H:i:s');

Example 3: carbon format date in laravel

1. First parse the created_at field as Carbon object.
	$createdAt = Carbon::parse($item['created_at']);

2.Then you can use
	$suborder['payment_date'] = $createdAt->format('M d Y');

Example 4: get array of last 3 dates with carbon

$period = CarbonPeriod::create('2018-06-14', '2018-06-20');

// Iterate over the period
foreach ($period as $date) {
    echo $date->format('Y-m-d');
}

// Convert the period to an array of dates
$dates = $period->toArray();