How can I get 10 days future date from today in Laravel (PHP)

You could use the superb Carbon package by installing it via composer.

Then in your code you can run add days like this

Entering the date piece by piece

$dt = Carbon::create(2021, 1, 22, 0);
echo $dt->addDays(10); // adding 10 days from today on

Using now()

echo Carbon::now()->addDays(10); // adding 10 days from today on

You could use PHP's DateTime class:

    $dt = new DateTime();
    $dt->modify( '+10 days' );
    echo $dt->format( 'dS M, Y (D)' );

https://www.php.net/manual/en/book.datetime.php

You can use it that way. You don't need any package for this job.

$tenDaysLater = date ('Y-m-d', strtotime ('+10 day'));

try this code

$date = date('Y-m-d');
$addDay= strtotime($date . "+10 days"); 

echo date('Y-m-d', $addDay);

You could do this:

$datetime = Carbon::now()->addDays(30);