Php 为WooCommerce中的特定用户角色指定促销价格

try 以下修改后的代码，该代码将显示store 和单个产品中的折扣产品价格:

// Conditional function: Targeting specific user role
function is_biblioteka_role() {
    global $current_user;
    return in_array( 'biblioteka', $current_user->roles );
}

// Display discounted product price in shop and single product.
add_filter( 'woocommerce_get_price_html', 'user_role_product_discounted_price_html', 20, 2 );
function user_role_product_discounted_price_html( $price_html, $product ) {
    // Targeting specific user role
    if ( ! is_biblioteka_role() ) return $price_html;

    $percentage = 40; // Kortings percentage
    $price = $product->get_price();

    // Only for prices greater than zero
    if ( ! ($price > 0) ) return $price_html;

    $regular_price    = wc_get_price_to_display( $product );
    $discounted_price = wc_get_price_to_display( $product, array( 'price' => ($price * (100 - $percentage) / 100) ) );
    return wc_format_sale_price( $regular_price, $discounted_price ) . $product->get_price_suffix();
}

// Cart subtotal discount
add_action( 'woocommerce_cart_calculate_fees', 'discount_based_on_user_role', 20, 1 );
function discount_based_on_user_role( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return; // Exit
    if ( ! is_biblioteka_role() ) return; // Targeting specific user role

    $percentage = 40; // Kortings percentage
    $cart->add_fee(
        sprintf( __("Biblioteka discount (%s)", "woocommerce"), $percentage.'%'), 
        -($cart->get_subtotal() * $percentage / 100), true 
    );
}

代码保存在您的子主题的functions.php文件中(或插件中).经过测试并工作.