<?php

interface paymentMethod{
    
    const DEFAULTPAYMENT = 'visa';
    function pay();
}

interface paymentMethodNew{
    
    //const DEFAULTPAYMENT = 'visa';
    function pay();
}

class CardPayment implements paymentMethod,paymentMethodNew{
    
    public function pay(){
        
        return 'ddd';
    }
}

echo (new CardPayment)->pay();