在Woocommerce中每3件商品的统一费用运送中增加额外的费用

Question

我正在经营woocommerce商店，并使用统一费率送货$15。我写了一个公式$1.25为每个其他项目添加。

13.50 +（1.25 * [数量]）

$1.25为附加的每个项目喝“统一费率设置| ：

但是我想$1.25每3个项目加上这个费用。我的意思是3、6、9、12，依此类推...

谁能告诉我该怎么做？任何帮助表示赞赏。

Answer 1

更新 （2021）

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以下代码将为每 3 件物品(3, 6, 9 \xe2\x80\xa6) 的统一费率运输方式添加额外费用。

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您将需要使用简单的初始成本而不是公式来更改运费。

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您可能需要在“运送选项”选项卡下的常规运送设置中“启用调试模式”，以暂时禁用运送缓存。

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代码（您将在其中设置额外运费）：

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add_filter('woocommerce_package_rates', 'shipping_additional_cost_each_three_items', 10, 2);\nfunction shipping_additional_cost_each_three_items( $rates, $package ){\n    if ( is_admin() && ! defined( 'DOING_AJAX' ) )\n        return $rates;\n\n    // HERE set your additional shipping cost\n    $additional_cost = 1.25;\n    $items_count     = 0; // Initializing\n    $each_items      = 3; // Number of items (for additional cost)\n\n    // Loop through cart items for the current shipping package        \n    foreach( $package['contents'] as $cart_item ) {\n        $items_count = += $cart_item['quantity']; // Count cart items for current shipping package\n    }\n\n    if ( $items_count >= $each_items ) {\n        // Loop through the shipping taxes array\n        foreach ( $rates as $rate_key => $rate ){\n            // Targetting "flat rate"\n            if( 'flat_rate' === $rate->method_id ){\n                $initial_cost = $new_cost = $rate->cost;\n                $has_taxes    = false; // Initializing\n                $taxes        = array(); // Initializing\n                \n                // Adding to cost the additional cost each 3 items (3, 6, 9 \xe2\x80\xa6)\n                for($i = 0; $i <= $items_count; $i+ = $each_items){\n                    $new_cost += $additional_cost;\n                }\n                $rates[$rate_key]->cost = $new_cost; // Set the new cost\n    \n                // Taxes rate cost (if any) - Loop through taxes array (as they can be many)\n                foreach ($rate->taxes as $key => $tax){\n                    if( $tax > 0 ){\n                        // Get the initial tax cost\n                        $initial_tax_cost = $new_tax_cost = $tax;\n                        // Get the tax rate conversion\n                        $tax_rate    = $initial_tax_cost / $initial_cost;\n                        // Set the new tax cost\n                        $taxes[$key] = $new_cost * $tax_rate;\n                        $has_taxes   = true; // Enabling tax changes\n                    }\n                }\n                // set array of shipping tax cost\n                if( $has_taxes ) {\n                    $rates[$rate_key]->taxes = $taxes; \n                }\n            }\n        }\n    }\n    return $rates;\n}\n

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代码位于活动子主题（或活动主题）的 function.php 文件中。经过测试并有效。

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不要忘记在发货设置中禁用“启用调试模式”选项。

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根据您的第二条评论回答：

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您将替换此块：

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// Adding to cost the additional cost each 3 items (3, 6, 9 \xe2\x80\xa6)\nfor($i = 0; $i <= $items_count; $i += $each_items){\n    $new_cost += $additional_cost;\n}\n

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通过以下方式：

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// Adding to cost an additional fixed cost for the 2nd item\nif($items_count >= 2){\n    $new_cost += 6.21; \n}\n\n// Adding to cost the additional cost each 3 items (3, 6, 9 \xe2\x80\xa6)\nfor($i = 0; $i <= $items_count; $i += $each_items){\n    $new_cost += $additional_cost;\n}\n

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