Creating our module structure
Theoretically, we know how to create a payment module, so let’s apply it to our example module. As seen before, we can create the /modules/whcashpayment/ folder containing a logo.png file, the index.php file, and the main module class file named whcashpayment.php.
Our /modules/whcashpayment/whcashpayment.php file should initially look like this:
<?php
use PrestaShop\PrestaShop\Core\Payment\PaymentOption;
if (!defined('_PS_VERSION_')) {
exit;
}
class WHCashPayment extends PaymentModule
{
const CONFIG_OS_WHCASH = 'WH_OS_CASH_VALIDATION';
public function __construct()
{
$this->name = 'whcashpayment';
$this->tab = 'payments_gateways';
$this->version = '1.0.0';
$this->author = 'Web Helpers';
$this->need_instance...
