Get customers on same payment schedule in Stripe

Subscribe.php

<?php

//THIS IS ONLY A SNIPPET

namespace App\Http\Livewire\Subscribe;

class Subscribe extends Component
{
  
/*
 * Creating the UNIX Timestamp.
 * This will grab today's date and make a UNIX Timestamp for the following month on the 1st
 * This is to get all customers on the same payment schedule
*/
public $now;
public $firstOfNextMonthUnix;

public function mount(){
    $this->now                  = Carbon::now()->setTimezone('America/Chicago');
    $this->firstOfNextMonthUnix = Carbon::parse($this->now)->addMonth()->startOfMonth()->setTime(8, 0, 0, 0)->timestamp;
}

/*
 * Creating the Subscription In STRIPE.
 * This will charge the full price immediately
*/
$subscriptionStripe = $stripe->subscriptions->create([
    'customer'               => auth()->user()->stripe_id,
    'default_payment_method' => $paymentMethod->id,
    'items'                  => $items,
    'metadata'               => [],
]);
/*
 * Add the newly create subscription in your database.
*/
$subscription = Subscription::create([
    'stripe_id'                => $subscriptionStripe->id,
    'stripe_payment_method_id' => $paymentMethod->id,
    // etc...
]);
/*
 * Update the Subscription
 * This will update the subscription to a trial
 * The next invoice will end on the 1st day of the following month
*/
\Stripe\Subscription::update($subscription->stripe_id, [
    'default_payment_method' => $subscription->stripe_payment_method_id,
    'trial_end'              => $this->firstOfNextMonthUnix,
    'proration_behavior'     => 'none',
]);

/*
 * Now you can go into your Stripe dashboard and update the subscription trial to end now.
 * This will allow you to test for the next months subscription
*/
}