嗨，伙计们，我想展示一下客户通过当前交易节省了多少钱。我输入了我店里所有产品的正常价格和销售价格，它显示了prdocut目录上的折扣百分比。Woocommerce购物车仅显示总计和小计。

小计：10美元总计：10美元$

所以我写了这个函数来显示我想要什么。虽然它可以在我的本地主机上运行，但我无法在实时主机上获得任何结果。

 function discount_module_in() {
    global $woocommerce;

    $items = $woocommerce->cart->get_cart();

        foreach($items as $item => $values) { 
            $price=get_post_meta($values[\'product_id\'] , \'_regular_price\', true);
            $sale=get_post_meta($values[\'product_id\'] , \'_sale_price\', true);
            $amount=$price-$sale;
            $discount=(1-$sale/$price)*100;
            if (intval($discount)==70) {
                $amount70+=$amount;
            } 
            if (intval($discount)==50) {
                $amount50+=$amount;
            }
            if (intval($discount)==30) {
                $amount30+=$amount;

            }

        }
        if ($amount70>0) {
            echo "70% OFF: -".$amount70.get_woocommerce_currency_symbol()."<br>";
        }
        if ($amount50>0) {
            echo "50% OFF: -".$amount50.get_woocommerce_currency_symbol()."<br>";
        }
        if ($amount30>0) {
            echo "30% OFF: -".$amount30.get_woocommerce_currency_symbol()."<br>";
        }


}   
add_action( \'woocommerce_after_cart_totals\', \'discount_module_in\');

我还检查了它的主题是否存在问题，但我只是将代码粘贴到函数中。php，以确保我尝试了简单的函数，并且它工作正常。这也不是woocommerce挂钩问题。

  function discount_module_in() {

        echo "test"
  }
  add_action( \'woocommerce_after_cart_totals\', \'discount_module_in\');

我也用这个来更改代码。它在本地主机上运行，但在实时主机上仍不工作。

function deneme(){

    global $woocommerce;


    $cart = WC()->cart->get_cart();

    foreach( $cart as $cart_item ){

    $product = wc_get_product( $cart_item[\'product_id\'] );


    $price=$product->get_regular_price();
    $sale=$product->get_sale_price();

    $amount=$price-$sale;
    $discount=(1-$sale/$price)*100;
        if (intval($discount)==70) {
            $amount70+=$amount;
        } 
        if (intval($discount)==50) {
                    $amount50+=$amount;
        }
        if (intval($discount)==30) {
        $amount30+=$amount;
        }

    }
        if ($amount70>0) {
            echo "70% OFF: -".$amount70.get_woocommerce_currency_symbol()."<br>";
        }
        if ($amount50>0) {
            echo "50% OFF: -".$amount50.get_woocommerce_currency_symbol()."<br>";
        }
        if ($amount30>0) {
            echo "30% OFF: -".$amount30.get_woocommerce_currency_symbol()."<br>";
        }    
}
add_action( \'woocommerce_proceed_to_checkout\', \'deneme\');

调试后，它给了我这个错误

警告：在/home/u693223509/domains/inuovo中遇到非数字值。com/public\\u html/wp-content/themes/inuovo/functions。php在线34

警告：在/home/u693223509/domains/inuovo中遇到非数字值。com/public\\u html/wp-content/themes/inuovo/functions。php在线34

警告：在/home/u693223509/domains/inuovo中遇到非数字值。com/public\\u html/wp-content/themes/inuovo/functions。php在线35

警告：在/home/u693223509/domains/inuovo中遇到非数字值。com/public\\u html/wp-content/themes/inuovo/functions。php在线35

警告：在/home/u693223509/domains/inuovo中被零除。com/public\\u html/wp-content/themes/inuovo/functions。php在线35

这是第34行和第35行

    $amount=$price-$sale;
    $discount=(1-$sale/$price)*100;

    function deneme (){

    global $woocommerce;


    $cart = WC()->cart->get_cart();

    foreach( $cart as $cart_item ){

    $product = wc_get_product( $cart_item[\'product_id\'] );
    // Now you have access to (see above)...

    $sale     =  $product->get_variation_sale_price( \'min\', true );
    $price  =  $product->get_variation_regular_price( \'max\', true );
    $amount=$price-$sale;
    $total+=$price*$cart_item[\'quantity\'];
    $discount=(1-$sale/$price)*100;
        if (intval($discount)==70) {
            $amount70+=$amount*$cart_item[\'quantity\'];
        } 
        if (intval($discount)==50) {
            $amount50+=$amount*$cart_item[\'quantity\'];
        }
        if (intval($discount)==30) {
        $amount30+=$amount*$cart_item[\'quantity\'];
        }

    }
        echo "<span style=\'float:right\'>ORDER TOTAL: ".get_woocommerce_currency_symbol().$total."</span><br>";
        if ($amount70>0) {
            echo "<span style=\'float:right\'>70% OFF: -".get_woocommerce_currency_symbol().$amount70."</span><br>";
        }
        if ($amount50>0) {
            echo "<span style=\'float:right\'>50% OFF: -".get_woocommerce_currency_symbol().$amount50."</span><br>";
        }
        if ($amount30>0) {
            echo "<span style=\'float:right\'>30% OFF: -".get_woocommerce_currency_symbol().$amount30."</span><br>";
        }  
}

add_action( \'woocommerce_cart_totals_after_order_total\', \'deneme\');