function wp_get_productcat_postcount($id) {

    //return $count;
    $args = array(
      \'post_type\'     => \'product\', //post type, I used \'product\'
      \'post_status\'   => \'publish\', // just tried to find all published post
      \'posts_per_page\' => -1,  //show all
      \'tax_query\' => array(
        \'relation\' => \'AND\',
        array(
          \'taxonomy\' => \'product_cat\',  //taxonomy name  here, I used \'product_cat\'
          \'field\' => \'id\',
          \'terms\' => array( $id )
        )
      )
    );

    $query = new WP_Query( $args);

    /*
    echo \'<pre>\';

    print_r($query->post_count);
    echo \'</pre>\';
    */

    return (int)$query->post_count;

}

我真的很喜欢瓦沙·达奇（VarshaDhadge）简单的回答，但这是一篇文章附带的分类学术语。对于整个站点，使用get_terms 相反，以类似的方式：

$custom_cats = get_terms(
    \'custom_cat\', // your custom taxonomy slug
    array(
        // get all the terms, even empty ones so we can see what items have 0
        \'hide_empty\' => false,
    )
);

foreach ( $custom_cats as $term ) {
    echo $term->slug . \' - \' . $term->count . \'<br>\';
}

下面的代码将获取特定分类法中的文章计数

<?php 
  $terms = get_the_terms( $post->ID , \'your-taxonomy\' );
  foreach ( $terms as $term ) {
    echo $term->count;
  } ?>

可以使用get\\u queryed\\u object（）对当前对象执行此操作

$posts = get_queried_object();
echo $posts->count;

Wordpress将属性计数添加到每个分类法中，并在插入或更新新帖子时进行更新。因为它不想再次访问数据库并进行计算以获得分类法中的帖子数量。

echo $custom_tax_obj->count;

$args = array(
\'post_type\' => \'product\',
\'post_status\' => \'published\',
\'product_cat\' => $catpage, // $catpage == your category slug name
\'numberposts\' => -1
);
echo $num = count( get_posts( $args ) );

我在分类法归档模板中面临这种情况（例如。taxonomy-taxname.php) 对于具有自定义帖子类型和关联类别/标记分类的网站。我想在标题中显示使用分类法的项目数。

在我的分类法归档模板中，我需要找到分类法所表示的术语，然后将其传递给一个函数，以获取使用该术语的自定义post类型项目的数量，这是从标记分类法获得的

// the term we need for this taxonomy
$term_obj = get_queried_object(); 

// get the term object
$term = get_term( $term_obj->term_id, \'taxname\' );

// get a count of content with this term
$tax_count = get_tax_count(\'taxname\', $term->slug, \'custom-post-type-name\');

// grammar counts
$plural = ( $tax_count == 1) ? \'\' : \'s\';

echo $tax_count . \' Item\' . $plural . \' Tagged "\' . $term->name . \'"\';

function tax_count ( $taxonomy, $term, $post_type ) {
    // find the number of items in custom post type that use the term in a taxonomy

    $args = array(
        \'post_type\' =>  $post_type,
        \'posts_per_page\' => -1,
        \'tax_query\' => array(
            array(
                \'taxonomy\' => $taxonomy,
                \'field\'    => \'slug\',
                \'terms\'    => $term,
            ),
        ),
    );

    $tax_query = new WP_Query( $args );

    return ($tax_query->found_posts);

}

我根据自己的需求创建了此函数，并与此问题完全匹配。

Get Post Count In or Not In Taxonomy

/**
 * Get Post/Post Type Count in the given Taxonomy
 *
 * @param  $post_type string any post type
 * @param  $taxonomy string any taxonomy
 * @param  $is_exists string NOT EXISTS or EXISTS
 *
 * @return String Number of Post count
 */

function prefix_get_post_count_in_taxonomy($post_type, $taxonomy, $is_exists = \'NOT EXISTS\')
{
    global $wpdb;

    $count = $wpdb->get_var(
        "
select COUNT(*) as post_count  
    FROM $wpdb->posts as A 
WHERE $is_exists (
    SELECT 1
    FROM 
         $wpdb->term_relationships as B
             INNER JOIN $wpdb->term_taxonomy as C
                 ON C.term_taxonomy_id = B.term_taxonomy_id
    WHERE C.taxonomy = \'$taxonomy\'
      AND B.object_id = A.ID
    )                                                    
  AND A.post_type = \'$post_type\'
  "
    );

    return $count;
}


/**
 * Example
 *
 * Post type: download
 * Taxonomy: download_category
 * Is Exist: EXISTS
 */
echo prefix_get_post_count_in_taxonomy(\'download\', \'download_category\', \'EXISTS\');