从WordPress获取WooCommerce产品类别

Question

我试图通过我的WordPress主题中的函数从WooCommerce获取产品类别

    function get_me_list_of($atts, $content = null)
    {   
        $args = array( 'post_type' => 'product', 'posts_per_page' => 10, 'product_cat' => $atts[0]);

        $loop = new WP_Query( $args );

        echo '<h1 class="upp">Style '.$atts[0].'</h1>';
        echo "<ul class='mylisting'>";
        while ( $loop->have_posts() ) : $loop->the_post(); 
        global $product; 

        echo '<li><a href="'.get_permalink().'">'.get_the_post_thumbnail($loop->post->ID, 'thumbnail').'</a></li>';
     echo '<li><a href="'.get_permalink().'">'.$loop->post->post_title.'</a></li>';

echo '<li><a href="">'.get_categories().'</a></li>';
        endwhile; 

        echo "</ul>";

        wp_reset_query(); 


    }

    ?>

上面的代码返回了一些产品,但产品类别.

当我echo '<li><a href="">'.get_categories().'</a></li>';在上面的代码中包含它时,它返回一个数组.我该如何解决？

我如何更改此以从WooCommerce获取产品类别？

Answer 1

<?php

  $taxonomy     = 'product_cat';
  $orderby      = 'name';  
  $show_count   = 0;      // 1 for yes, 0 for no
  $pad_counts   = 0;      // 1 for yes, 0 for no
  $hierarchical = 1;      // 1 for yes, 0 for no  
  $title        = '';  
  $empty        = 0;

  $args = array(
         'taxonomy'     => $taxonomy,
         'orderby'      => $orderby,
         'show_count'   => $show_count,
         'pad_counts'   => $pad_counts,
         'hierarchical' => $hierarchical,
         'title_li'     => $title,
         'hide_empty'   => $empty
  );
 $all_categories = get_categories( $args );
 foreach ($all_categories as $cat) {
    if($cat->category_parent == 0) {
        $category_id = $cat->term_id;       
        echo '<br /><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .'</a>';

        $args2 = array(
                'taxonomy'     => $taxonomy,
                'child_of'     => 0,
                'parent'       => $category_id,
                'orderby'      => $orderby,
                'show_count'   => $show_count,
                'pad_counts'   => $pad_counts,
                'hierarchical' => $hierarchical,
                'title_li'     => $title,
                'hide_empty'   => $empty
        );
        $sub_cats = get_categories( $args2 );
        if($sub_cats) {
            foreach($sub_cats as $sub_category) {
                echo  $sub_category->name ;
            }   
        }
    }       
}
?>

这将按层次列出其下的所有顶级类别和子类别.如果您只想显示顶级类别,请不要使用内部查询.根据自己的喜好设计风格.

Answer 2

通过添加子类别的链接来改进Suman.hassan95的答案.替换以下代码:

$sub_cats = get_categories( $args2 );
    if($sub_cats) {
        foreach($sub_cats as $sub_category) {
            echo  $sub_category->name ;
        }

    }

有:

$sub_cats = get_categories( $args2 );
            if($sub_cats) {
                foreach($sub_cats as $sub_category) {
                    echo  '<br/><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a>';
                }
            }

或者如果您还希望每个子类别都有一个计数器,请替换为:

$sub_cats = get_categories( $args2 );
            if($sub_cats) {
                foreach($sub_cats as $sub_category) {
                    echo  '<br/><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a>';
                    echo apply_filters( 'woocommerce_subcategory_count_html', ' <span class="cat-count">' . $sub_category->count . '</span>', $category );
                }
            }

Answer 3

用于获取所有类别和子类别（无论深度如何）的有效解决方案。

    /**
     * Lists all product categories and sub-categories in a tree structure.
     *
     * @return array
     */
    function list_product_categories() {
        $categories = get_terms(
            array(
                'taxonomy'   => 'product_cat',
                'orderby'    => 'name',
                'hide_empty' => false,
            )
        );

        $categories = treeify_terms($categories);

        return $categories;
    }

    /**
     * Converts a flat array of terms into a hierarchical tree structure.
     *
     * @param WP_Term[] $terms Terms to sort.
     * @param integer   $root_id Id of the term which is considered the root of the tree.
     *
     * @return array Returns an array of term data. Note the term data is an array, rather than
     * term object.
     */
    function treeify_terms($terms, $root_id = 0) {
        $tree = array();

        foreach ($terms as $term) {
            if ($term->parent === $root_id) {
                array_push(
                    $tree,
                    array(
                        'name'     => $term->name,
                        'slug'     => $term->slug,
                        'id'       => $term->term_id,
                        'count'    => $term->count,
                        'children' => treeify_terms($terms, $term->term_id),
                    )
                );
            }
        }

        return $tree;
    }

它也比当前的最佳答案高效得多，因为它仅使用一个查询。

Answer 4

您也可以使用 wp_list_categories();

wp_list_categories( array('taxonomy' => 'product_cat', 'title_li'  => '') );