Payment.php

<?php

class Transaction
{
  private $from;
  
  private $to;
  
  private $amount;
}

class Wallet 
{
  private $amount;
  
  public function getPayment(Wallet $wallet, int $amount): Transaction
  {
    if ($amount > $wallet->getAmount()) {
      thow new UnreachebleBalance($wallet);
    }
    
    $wallet->minusAmount($amount);
    $this->plusAmount($amount);
    
    return new Transaction($wallet, $this, $amount);
  }
}

class Controller
{
  public function paymentAction(Wallet $form, Wallet $to, $amount)
  {
    $transaction = $to->getPayment($from, $amount);
    $this->em->persist($transaction);
    $this->em->flush();
  }
}