stagfe2/app/Models/PaymentMethod.php

<?php

namespace App\Models;

class PaymentMethod extends Model
{
    protected $table = 'payment_method';

    public function customer(){
        return $this->hasOne(Customer::class, 'id', 'customer_id');
    }

    public function displayName(){
        // $parsed = json_decode($this->stripe_detail_json);
        return "Ending: <b>{$this->card_last4}</b>; Expiry: {$this->expiration_month} / {$this->expiration_year}";
    }
}