如何計算WooCommerce購物車中添加的產品ID的額外費用

我正在使用如何在 WooCommerce 購物車答案代碼（第 2 部分）中為不同產品添加額外費用。此代碼用于向用其 ID 描述的產品添加額外費用。

在現有答案中，我已替換：

// Settings
$settings = array(
    array(
        'product_id' => 30,
        'amount'     => 5,
        'name'       => __( 'Additional service fee', 'woocommerce' ),
    ),
    array(
        'product_id' => 813,
        'amount'     => 10,
        'name'       => __( 'Packing fee', 'woocommerce' ),
    ),
    array(
        'product_id' => 815,
        'amount'     => 15,
        'name'       => __( 'Another fee', 'woocommerce' ),
    ),
);

和

// Settings
$settings = array(
    array(
        'product_id' => __(123, 456, 789),
        'amount'     => 10,
        'name'       => __( 'Additional service fee', 'woocommerce' ),
    ),
    array(
        'product_id' => __(987, 654, 321),
        'amount'     => 20,
        'name'       => __( 'Additiona packing fee', 'woocommerce' ),
    ),
    array(
        'product_id' => __(445, 556, 555),
        'amount'     => 30,
        'name'       => __( 'Additinal specific fee', 'woocommerce' ),
    ),
);

目前，如果我添加兩個屬于同一“附加費”類別的產品，例如“附加服務費”只顯示一次金額，不計算在內。

我的問題是如何更改代碼，以便通過添加多個屬于同一“附加費用”類別的產品 - 考慮該類別的費用總和。

uj5u.com熱心網友回復：

該__（） WordPress的功能檢索翻譯，因此具有無關添加多個productIDs。相反，您可以將多個產品 ID 添加為一個陣列。

注意：該total_amount設定用作跟蹤總金額的計數器，因此不應更改！

注意：我添加了額外的代碼，也將產品數量考慮在內。如果不適用。只需洗掉$quantity = $cart_item['quantity'];并更改$setting['amount'] * $quantity;為$setting['amount'];

所以你得到：

function action_woocommerce_cart_calculate_fees( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Settings (multiple settings arrays can be added/removed if desired)
    $settings = array(
        array(
            'product_id'    => array( 30, 813, 815 ),
            'amount'        => 5,
            'name'          => __( 'Additional service fee', 'woocommerce' ),
            'total_amount'  => 0,
        ),
        array(
            'product_id'    => array( 817, 819, 820 ),
            'amount'        => 25,
            'name'          => __( 'Packing fee', 'woocommerce' ),
            'total_amount'  => 0,
        ),
        array(
            'product_id'    => array( 825 ),
            'amount'        => 100,
            'name'          => __( 'Another fee', 'woocommerce' ),
            'total_amount'  => 0,
        ),
    );
    
    // Loop through cart contents
    foreach ( $cart->get_cart_contents() as $cart_item ) {      
        // Get product id
        $product_id = $cart_item['product_id'];
        
        // Get quantity
        $quantity = $cart_item['quantity'];
        
        // Loop trough settings array (determine total amount)
        foreach ( $settings as $key => $setting ) {
            // Search for the product ID
            if ( in_array( $product_id, $settings[$key]['product_id'] ) ) {
                // Addition
                $settings[$key]['total_amount']  = $setting['amount'] * $quantity;
            }
        }       
    }
    
    // Loop trough settings array (output)
    foreach ( $settings as $setting ) {
        // Greater than 0
        if ( $setting['total_amount'] > 0 ) {
            // Add fee
            $cart->add_fee( $setting['name'], $setting['total_amount'], false );    
        }
    }
}
add_action( 'woocommerce_cart_calculate_fees', 'action_woocommerce_cart_calculate_fees', 10, 1 );

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