Change the text of the "Pay Now" button on the WooCommerce checkout page to match the payment gateway option

Question

I've been trying for hours now and can't get this "basic" thing to work anyway.

I have a bunch of payment gateways available and I need to include their names (including order total amount) in the "Pay Now" button text.

Example: "Use Stripe to pay for order $49"

I have a piece of code that is said to automatically update the checkout when changing gateways.Please, can anyone help?

add_filter( 'woocommerce_order_button_text', 'order_button_text_based_on_gateway', 10, 1 );
function order_button_text_based_on_gateway( $cart ) {

    // Make sure we get the payment gateway
    $payment_method = WC()->session->get( 'chosen_payment_method' );

    // Based on different gateways, display different button text (order button)
    if ( $payment_method == ' bacs ' ) {

            return sprintf( '%s %s', __('Place order and pay', 'woocommerce'),
            strip_tags( WC()->cart->get_total() ) . 'Use WireTransfer' );
        }
    
    elseif ( $payment_method == ' check ' ) {

            return sprintf( '%s %s', __('Place order and pay', 'woocommerce'),
            strip_tags( WC()->cart->get_total() ) . 'Use personal check' );
        }

    elseif ( $payment_method == ' cod ' ) {

            return sprintf( '%s %s', __('Place order and pay', 'woocommerce'),
            strip_tags( WC()->cart->get_total() ) . 'Cash on delivery' );
        }

    elseif ( $payment_method == ' etco ' ) {

            return sprintf( '%s %s', __('Place order and pay', 'woocommerce'),
            strip_tags( WC()->cart->get_total() ) . 'Use EtCo' );
        }

    else ( $payment_method == ' stripe ' ) {

            return sprintf( '%s %s', __('Place order and pay', 'woocommerce'),
            strip_tags( WC()->cart->get_total() ) . 'Use Stripe' );
        }

}

Auto-update checkout script:

add_action( 'wp_footer', 'reload_checkout_based_on_gateway_change', 999 );
function reload_checkout_based_on_gateway_change() {

    if ( is_checkout() && ! is_admin() ) {

    //End PHP and start SCRIPT
    ?>

        <script>
        ( function( $ ) {
        $( 'form.checkout' ).on( 'change', 'input[name^="payment_method"]', function() {

                $( 'body' ).trigger( 'update_checkout' );
            }
        );
      }
    )
    
     (jQuery);

        </script>
    
        <?php
    }
}

Answer 1

There are a lot of errors in your code:

• The main error is about strings: 'cheque' and 'cheque' are two different strings.
  So among all the if statements, none of the payment methods match.
• Another error is that else does not support any conditional parameters.

There are several ways to change the text of the checkout "Place Order" button:

add_filter( 'woocommerce_order_button_text', 'order_button_text_based_on_gateway', 10 );
function order_button_text_based_on_gateway( $button_text ) {
    if ( is_checkout() && ! is_wc_endpoint_url() ) {
        $payment_method    = WC()->session->get( 'chosen_payment_method' ); // 获取当前支付网关
        $cart_total_string = strip_tags( WC()->cart->get_total() ); // 获取订单总额字符串
        $pay_order_text    = __('Order & Pay', 'woocommerce'); // 下单按钮

        if ( $payment_method == 'bacs' ) {
            $payment_method_text = __('using WireTransfer', 'woocommerce');
        } 
        elseif ( $payment_method == 'cheque' ) {
            $payment_method_text = __('with a personal cheque', 'woocommerce');
        } 
        elseif ( $payment_method == 'cod' ) {
            $payment_method_text = __('on delivery', 'woocommerce');
        }
        elseif ( $payment_method == 'etco' ) {
            $payment_method_text = __('using EtCo', 'woocommerce');
        }
        elseif ( $payment_method == 'stripe' ) {
            $payment_method_text = __('using Stripe', 'woocommerce');
        }

        if ( isset($payment_method_text) ) {
            $button_text = sprintf( '%s %s %s', $pay_order_text, $cart_total_string, $payment_method_text );
        }
    }
    return $button_text;
}

// 在支付方式更改时更新结账（jQuery）
add_action( 'woocommerce_checkout_init', 'trigger_update_checkout_on_payment_method_change' );
function trigger_update_checkout_on_payment_method_change(){
    wc_enqueue_js("$('form.checkout').on( 'change', 'input[name=payment_method]', function(){
        $(document.body).trigger('update_checkout');
    });");
}

Or you can also use the order_button_text attribute of WC_Payment_Gateway, as shown below:

add_filter('woocommerce_available_payment_gateways', 'change_payment_text_button');
function change_payment_text_button( $payment_gateways ) {
    if ( is_checkout() && ! is_wc_endpoint_url() ) {
        $cart_total_string = strip_tags( WC()->cart->get_total() ); // 获取订单总额字符串
        $pay_order_text    = __('Order & Pay', 'woocommerce'); // 下单按钮文本

        if ( isset($payment_gateways['bacs']) ) {
            $payment_gateways['bacs']->order_button_text = sprintf( '%s %s %s', 
                $pay_order_text, $cart_total_string, __('using WireTransfer', 'woocommerce') );
        } 
        if ( isset($payment_gateways['cheque']) ) {
            $payment_gateways['cheque']->order_button_text = sprintf( '%s %s %s', 
                $pay_order_text, $cart_total_string, __('with a personal cheque', 'woocommerce') );
        } 
        if ( isset($payment_gateways['cod']) ) {
            $payment_gateways['cod']->order_button_text = sprintf( '%s %s %s', 
                $pay_order_text, $cart_total_string, __('on delivery', 'woocommerce') );
        }
        if ( isset($payment_gateways['etco']) ) {
            $payment_gateways['etco']->order_button_text = sprintf( '%s %s %s', 
                $pay_order_text, $cart_total_string, __('using EtCo', 'woocommerce') );
        }
        if ( isset($payment_gateways['stripe']) ) {
            $payment_gateways['stripe']->order_button_text = sprintf( '%s %s %s', 
                $pay_order_text, $cart_total_string, __('using Stripe', 'woocommerce') );
        }
    }
    return $payment_gateways;
}

Place the code in your child theme’s functions.php file (or in a plugin). It has been tested and works fine.