爲Learnpress添加理想的付款方式

我試圖在wordpress上的learnpress插件中使用IDEAL付款方式。我找到了一個名爲payment-method.php的頁面，但我不知道如何去做。下面是代碼爲Learnpress添加理想的付款方式

<?php if (!defined('ABSPATH')) { 
exit; } ?> 

<?php if ($gateway instanceof LP_Gateway_Abstract) : ?> 

<?php if (apply_filters('learn_press_display_payment_method', true, $gateway->id)) { ?> 
    <li> 
     <label> 
      <input id="payment_method_<?php echo $gateway->id; ?>" type="radio" class="input-radio" <?php checked($selected, $gateway->id, true); ?> name="payment_method" value="<?php echo esc_attr($gateway->id); ?>" <?php checked(LP()->session->get('chosen_payment_method') == $gateway->id, true); ?> data-order_button_text="<?php echo esc_attr($gateway->order_button_text); ?>" /> 
      <?php echo($gateway->get_title()); ?> 
     </label> 
     <?php if (($payment_form = $gateway->get_payment_form()) || ($payment_form = $gateway->get_description())) { ?> 
      <div class="payment-method-form payment_method_<?php echo $gateway->id; ?>"><?php echo $payment_form; ?></div> 
     <?php } ?> 
    </li> 
<?php } ?> 

<?php else: ?> 

<?php do_action('learn_press_display_payment_method_form', $gateway); ?>

來源

2016-12-16 Arjan Knol