Notes

<?php
/**
* Checkout coupon form
*
* This template can be overridden by copying it to yourtheme/woocommerce/checkout/form-coupon.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you
* (the theme developer) will need to copy the new files to your theme to
* maintain compatibility. We try to do this as little as possible, but it does
* happen. When this occurs the version of the template file will be bumped and
* the readme will list any important changes.
*
* @see https://docs.woocommerce.com/document/template-structure/
* @package WooCommerce/Templates
* @version 3.4.4
*/

defined( 'ABSPATH' ) || exit;

if ( ! wc_coupons_enabled() ) { // @codingStandardsIgnoreLine.
return;
}
if ( $checkout->is_registration_required() && is_user_logged_in() ) {
?>
<div class="woocommerce-form-coupon-toggle">
<?php wc_print_notice( apply_filters( 'woocommerce_checkout_coupon_message', esc_html__( 'Have a coupon?', 'woocommerce' ) . ' <a href="#" class="showcoupon">' . esc_html__( 'Click here to enter your code', 'woocommerce' ) . '</a>' ), 'notice' ); ?>
</div>

<form class="checkout_coupon woocommerce-form-coupon" method="post" style="display:none">

<p><?php esc_html_e( 'If you have a coupon code, please apply it below.', 'woocommerce' ); ?></p>

<p class="form-row form-row-first">
<input type="text" name="coupon_code" class="input-text" placeholder="<?php esc_attr_e( 'Coupon code', 'woocommerce' ); ?>" id="coupon_code" value="" />
</p>

<p class="form-row form-row-last">
<button type="submit" class="button" name="apply_coupon" value="<?php esc_attr_e( 'Apply coupon', 'woocommerce' ); ?>"><?php esc_html_e( 'Apply coupon', 'woocommerce' ); ?></button>
</p>

<div class="clear"></div>
</form>
<?php } ?>