问题

我有代码来检查购物车中商品的数量，然后根据数量进行折扣。我如何对价格低于500的商品进行额外检查（对于这些商品，折扣应为0）。

以下代码基于 https://stackoverflow.com/questions/44856874/woocommerce-cart-quantity-based-discount/44857080#44857080 的答案：

add_action( 'woocommerce_cart_calculate_fees','wc_cart_quantity_discount', 10, 1 );

function wc_cart_quantity_discount( $cart_object ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    ## -------------- DEFINIG VARIABLES ------------- ##
    $discount = 0;
    $cart_item_count = $cart_object->get_cart_contents_count();
    $cart_total_excl_tax = $cart_object->subtotal_ex_tax;
    /*foreach( $cart_object->get_cart() as $cart_item_key => $cart_item ) {
		$cart_item = $cart_object->get_cart_contents_count();
	}*/
	
    
    // Assign each product's price to its cart item key (to be used again later)
    
    ## ----------- CONDITIONAL PERCENTAGE ----------- ##

        if( $cart_item_count <= 1  )
            $percent = 5;
        elseif( $cart_item_count <= 2  )
            $percent = 10;
        elseif( $cart_item_count <= 3  )
            $percent = 15;
        elseif( $cart_item_count <= 4  )
            $percent = 20;
        elseif( $cart_item_count >= 5  )
            $percent = 25;
        else {
            $percent = 0;
        }

    ## ------------------ CALCULATION ---------------- ##
    $discount -= ($cart_total_excl_tax / 100) * $percent;

    ## ----  APPLYING CALCULATED DISCOUNT TAXABLE ---- ##
    if( $percent > 0 )
        $cart_object->add_fee( __( "Quantity discount $percent%", "woocommerce" ), $discount, true);
}

答案1

得分: 1

以下是您提供的代码的翻译部分：

*已更新*

以下代码仅会计算超过500的项目，以根据该项目数量应用百分比折扣：
```php
add_action( 'woocommerce_cart_calculate_fees','wc_cart_intem_quantity_discount' );
function wc_cart_intem_quantity_discount( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // 初始化变量
    $min_item_amount = 500;
    $discount = $items_count = $percent = $items_subtotal = 0;

    // 循环遍历购物车项目
    foreach( $cart->get_cart() as $cart_item_key => $cart_item ) {
        // 仅计算超过500的项目
        if( $cart_item['data']->get_price() >= $min_item_amount ) {
            $items_count += $cart_item['quantity'];
            $items_subtotal += $cart_item['line_subtotal'];
        }
    }

    // 条件百分比
    if ($items_count == 1) {
        $percent = 5;
    } elseif ($items_count == 2) {
        $percent = 10;
    } elseif ($items_count == 3) {
        $percent = 15;
    } elseif ($items_count == 4) {
        $percent = 20;
    } elseif ($items_count >= 5) {
        $percent = 25;
    }

    // 折扣（可税）
    if( $items_count > 0 ) {
        // 计算
        $discount -= ($items_subtotal / 100) * $percent;

        $cart->add_fee( __( "数量折扣 $percent%", "woocommerce" ), $discount, true);
    }
}

基于以下网址的代码：https://stackoverflow.com/questions/44856874/woocommerce-cart-quantity-based-discount/44857080#44857080

<details>
<summary>英文:</summary>

*Updated*

The following code will only count items that are above 500, to apply a percentage discount based on that item count:
```php
add_action( &#39;woocommerce_cart_calculate_fees&#39;,&#39;wc_cart_intem_quantity_discount&#39; );
function wc_cart_intem_quantity_discount( $cart ) {
    if ( is_admin() &amp;&amp; ! defined( &#39;DOING_AJAX&#39; ) )
        return;

    // INITIALIZING VARIABLES
    $min_item_amount = 500;
    $discount = $items_count = $percent = $items_subtotal = 0;

    // Loop through cart items
    foreach( $cart-&gt;get_cart() as $cart_item_key =&gt; $cart_item ) {
        // Only counting items that are above 500
        if( $cart_item[&#39;data&#39;]-&gt;get_price() &gt;= $min_item_amount ) {
            $items_count += $cart_item[&#39;quantity&#39;];
            $items_subtotal += $cart_item[&#39;line_subtotal&#39;];
        }
    }

    // CONDITIONAL PERCENTAGE
    if ($items_count == 1) {
        $percent = 5;
    } elseif ($items_count == 2) {
        $percent = 10;
    } elseif ($items_count == 3) {
        $percent = 15;
    } elseif ($items_count == 4) {
        $percent = 20;
    } elseif ($items_count &gt;= 5) {
        $percent = 25;
    }

    // DISCOUNT (TAXABLE)
    if( $items_count &gt; 0 ) {
        // Calculation
        $discount -= ($items_subtotal / 100) * $percent;

        $cart-&gt;add_fee( __( &quot;Quantity discount $percent%&quot;, &quot;woocommerce&quot; ), $discount, true);
    }
}

Code based on: https://stackoverflow.com/questions/44856874/woocommerce-cart-quantity-based-discount/44857080#44857080