从 WordPress 获取 WooCommerce 产品类别

Question

我正在尝试通过我的 WordPress 主题中的功能从 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，但是产品类别。

当我在上面的代码中包含echo '<li><a href="">'.get_categories().'</a></li>'; 时，它会以数组的形式返回。我该如何解决这个问题？

如何更改此设置以从 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 ;
            }   
        }
    }       
}
?>

这将按层次列出所有顶级类别和它们下的子类别。如果您只想显示顶级类别，请不要使用内部查询。随心所欲。

Answer 2

通过添加指向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 ;
        }

    }

与：

$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

你也可以使用 wp_list_categories();

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

Answer 4

在我看来这是最简单的解决方案

$orderby = 'name';
                $order = 'asc';
                $hide_empty = false ;
                $cat_args = array(
                    'orderby'    => $orderby,
                    'order'      => $order,
                    'hide_empty' => $hide_empty,
                );

                $product_categories = get_terms( 'product_cat', $cat_args );

                if( !empty($product_categories) ){
                    echo '

                <ul>';
                    foreach ($product_categories as $key => $category) {
                        echo '

                <li>';
                        echo '<a href="'.get_term_link($category).'" >';
                        echo $category->name;
                        echo '</a>';
                        echo '</li>';
                    }
                    echo '</ul>


                ';
                }

Answer 5

//Recursive function

function wc_loop_categories($parent = 0)
{

    global $wpdb;

    $query = "SELECT t.term_id AS ID, t.name AS title  
        FROM {$wpdb->prefix}terms AS t
            LEFT JOIN {$wpdb->prefix}term_taxonomy AS ta
                ON ta.term_id = t.term_id            
            WHERE ta.taxonomy='product_cat'
                AND ta.parent=$parent
            ORDER BY t.name ASC";

    $cats = $wpdb->get_results($query);

    foreach ($cats as $key => $cat) {
        // get all sub_cats from current loop item
        $cats[$key]->sub_cats = wc_loop_categories($cat->ID);
    }

    return $cats;
}