additional add to cart button with fixed quantity in woocommerce single product pages

Question

With woocommerce enabled, we sell wine on our e-shop.

I would like an additional button so that customer can buy a case of wine (12 bottles) rather than having to s

Answer 1

It can be done easily with a custom hooked function displaying an additional button that will add 12 products on 1 click on single product pages for simple products only:

add_action( 'woocommerce_after_add_to_cart_button', 'additional_simple_add_to_cart', 20 );
function additional_simple_add_to_cart() {
    global $product;

    // Only for simple product type
    if( ! $product->is_type('simple') ) return;

    $href = '?add-to-cart=' . esc_attr( $product->get_id() ) . '&quantity=12';
    $class = 'ingle_add_to_cart_button-12 button alt';
    $style = 'display: inline-block; margin-top: 12px;';
    $button_text = __( "Add a case of 12", "woocommerce" );

    // Output
    echo '
'.$button_text.'';
}

Code goes in function.php file of your active child theme (active theme).

Tested and works.