从 WooCommerce 中的购物车项目中获取产品类别条款

Question

我只知道一些产品的产品类别，有些我不知道

function savings_33_55_cart() {
    foreach ( WC()->cart->get_cart() as $key => $cart_item ) { 
        for ($i=0; $i < $cart_item['quantity'] ; $i++) {   
            $productId = $cart_item['data']->get_id();

            echo "PROD ID: " . $productId . "<br>";

            $terms = get_the_terms( $productId, 'product_cat' );

            foreach ($terms as $term) {
                $product_cat = $term->name;
                echo "PRODUCT CATEGORY: " . $product_cat . "<br>"; 
            }
        }
    }
}

add_action( 'woocommerce_cart_totals_before_order_total', 'savings_33_55_cart' );

我希望获得每个产品的产品类别，但我只获得部分产品的产品类别

Answer 1

首先你的$product_cat变量没有定义。

要获取购物车商品的产品类别，您需要获取产品变体的父变量产品 ID，因为它们不将自定义分类作为产品类别或产品标签处理.

To get the correct product ID for any custom taxonomy terms on cart items always use:
$product_id = $cart_item['product_id']; 
Instead of:
$product_id = $cart_item['data']->get_id(); 

现在如果您需要获取产品类别术语名称，而不是使用get_the_terms()函数，您可以使用wp_get_post_terms()和implode() 功能如：

$term_names = wp_get_post_terms( $product_id, 'product_cat', ['fields' => 'names'] );

// Displaying term names in a coma separated string
if( count( $term_names ) > 0 )
    echo __("Product categories") . ": " . implode( ", ", $term_names ) . '<br>':

// OR displaying term names as a vertical list
if( count( $term_names ) > 0 )
    echo __("Product categories") . ": " . implode( "<br>", $term_names ) . '<br>';

因此在每个循环的购物车项目中：

// Loop through cart items
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
    $quantity     = $cart_item['quantity']; 
    $product_id   = $cart_item['product_id'];
    $variation_id = $cart_item['variation_id'];

    echo __("PRODUCT ID: ") . $product_id . "<br>";

    $term_names = wp_get_post_terms( $product_id, 'product_cat', array('fields' => 'names') );

    if ( count($term_names) > 0 ) {
        echo __("PRODUCT CATEGORY: ") . implode("<br>", $term_names) . "<br>";
    }
}

从 WooCommerce 中的购物车项目中获取产品类别条款

Get the product category terms from cart items in WooCommerce

php

wordpress

cart

woocommerce

taxonomy-terms