在 Woocommerce 中显示按产品属性过滤的相关产品

Question

我想显示按属性过滤的相关产品，该属性应等于页面 cookie 中的值。

我将 related.php 模板编辑为如下所示：

<?php woocommerce_product_loop_start(); ?>

<?php foreach ( $related_products as $related_product ) :
    // extract attribute filter_location in an array
    $results = $related_product->get_attribute( 'pa_filter_location' );

    // extract value from cookies filter_location
    $fl = $_COOKIE['filter_location'];

    foreach ( $results as $key ) {
        if( $key == $fl ) {
            $post_object = get_post( $related_product->get_id() );

            setup_postdata( $GLOBALS['post'] =& $post_object );

            wc_get_template_part( 'content', 'product' );
        }
    }

endforeach; ?>

<?php woocommerce_product_loop_end(); ?>

但我收到错误：警告：

Invalid argument supplied for foreach()

可能是什么问题？

Answer 1

问题出在这一行：

$results = $related_product->get_attribute( 'pa_filter_location' );

那不是给出一个数组，而是一个用逗号分隔的字符串。所以你不能用这种方式在你的foreach循环中使用它。

改为使用以下重新访问的代码：

<?php woocommerce_product_loop_start(); ?>

<?php foreach ( $related_products as $related_product ) :
    // extract attribute filter_location in an array
    $terms = $related_product->get_attribute( 'pa_filter_location' );

    // Set each term in an array
    $terms = ! empty($terms) ? (array) explode(', ', $terms) : array();

    foreach ( $terms as $term ) {
        if( isset($_COOKIE['filter_location']) && $term == $_COOKIE['filter_location'] ) {
            $post_object = get_post( $related_product->get_id() );

            setup_postdata( $GLOBALS['post'] =& $post_object );

            wc_get_template_part( 'content', 'product' );
        }
    }

endforeach; ?>

<?php woocommerce_product_loop_end(); ?>

它应该最终解决与 foreach 循环相关的错误。

在 Woocommerce 中显示按产品属性过滤的相关产品

Display related products filtered by product attribute in Woocommerce

php

wordpress

product

custom-taxonomy

woocommerce