Php 使用ACF在WooCommerce购物车中获取可变产品的自定义字段

在WooCommerce中，我使用Advanced Custom Fields插件显示一个名为“product\u cart\u image”的自定义字段（图像），它将替换cart中产品的默认图像。该代码适用于简单产品，但不适用于可变产品。对于这些，我得到默认图像

以下代码位于

cart.php

模板文件中：

foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
    $_product   = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
    $product_id = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key ); 
    ?>
    <span class="product-thumbnail">
    <?php
    $product_image      = $_product->get_image();
    $product_cart_image = get_field('product_cart_image', $_product->get_id());

    if ( ! empty ( $product_cart_image ) ) {
        $product_image = wp_get_attachment_image( $product_cart_image['ID'] );
    }

    $thumbnail = apply_filters( 'woocommerce_cart_item_thumbnail', $product_image, $cart_item, $cart_item_key );

    if ( ! $product_permalink ) {
        echo $thumbnail;
    } else {
        printf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $thumbnail ); 
    }
    ?>
    </span>
    <?php
}

foreach（WC（）->cart->get_cart（）作为$cart\u item\u key=>$cart\u item）{
$\u product=apply\u过滤器（'woocommerce\u cart\u item\u product'、$cart\u item['data']、$cart\u item、$cart\u item\u key）；
$product\U id=应用\U过滤器（'WOOMerce\U cart\U item\U product\U id'、$cart\U item['product\U id']、$cart\U item、$cart\U item\U key）；
?>
将可变产品添加到购物车时，对于购物车项目购物车，您需要获取可变产品ID而不是可变ID，因此您将替换以下行：

$product_cart_image = get_field('product_cart_image', $_product->get_id());

作者：

现在它应该可以工作了…所以在您的代码中：

foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
    $_product   = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
    $product_id = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key ); 
    ?>
    <span class="product-thumbnail">
    <?php
    $product_image      = $_product->get_image();
    $product_cart_image = get_field('product_cart_image', $cart_item['product_id']);

    if ( ! empty ( $product_cart_image ) ) {
        $product_image = wp_get_attachment_image( $product_cart_image['ID'] );
    }

    $thumbnail = apply_filters( 'woocommerce_cart_item_thumbnail', $product_image, $cart_item, $cart_item_key );

    if ( ! $product_permalink ) {
        echo $thumbnail;
    } else {
        printf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $thumbnail ); 
    }
    ?>
    </span>
    <?php
}

foreach（WC（）->cart->get_cart（）作为$cart\u item\u key=>$cart\u item）{
$\u product=apply\u过滤器（'woocommerce\u cart\u item\u product'、$cart\u item['data']、$cart\u item、$cart\u item\u key）；
$product\U id=应用\U过滤器（'WOOMerce\U cart\U item\U product\U id'、$cart\U item['product\U id']、$cart\U item、$cart\U item\U key）；
?>
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
    $_product   = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
    $product_id = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key ); 
    ?>
    <span class="product-thumbnail">
    <?php
    $product_image      = $_product->get_image();
    $product_cart_image = get_field('product_cart_image', $cart_item['product_id']);

    if ( ! empty ( $product_cart_image ) ) {
        $product_image = wp_get_attachment_image( $product_cart_image['ID'] );
    }

    $thumbnail = apply_filters( 'woocommerce_cart_item_thumbnail', $product_image, $cart_item, $cart_item_key );

    if ( ! $product_permalink ) {
        echo $thumbnail;
    } else {
        printf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $thumbnail ); 
    }
    ?>
    </span>
    <?php
}