Core在这里帮不了你。你必须做一个&hellip；

自定义查询

这是一个保存查询，我在管理UI屏幕上使用它来获取在自定义分页中使用它们的帖子的月份总数。请注意，我不仅查询已发布的帖子，还考虑到可能存在一些限制集，然后应用它。

$post_status = esc_attr( $_GET[\'post_status\'] );
$post_status = in_array( $post_status, $GLOBALS[\'avail_post_stati\'] )
    ? " AND post_status = {$post_status}"
    : \'all\'
;
\'all\' === $post_status AND $post_status = \'\';

$total_page_dates = $wpdb->get_results( $wpdb->prepare( "
    SELECT
        YEAR( post_date )  AS year,
        MONTH( post_date ) AS month,
        count( ID )        AS posts
    FROM {$wpdb->posts}
    WHERE
        post_type = %s
        %s
    GROUP BY
        YEAR( post_date ),
        MONTH( post_date )
    ORDER BY post_date
    ASC
", get_current_screen()->post_type, $post_status ) );

然后您就可以检查您的结果了

// Inspect the result
var_dump( $total_page_dates );

可能如下所示：

array (size=4)
  0 => 
    object(stdClass)[1847]
      public \'year\' => string \'2013\' (length=4)
      public \'month\' => string \'6\' (length=1)
      public \'posts\' => string \'19\' (length=2)
  1 => 
    object(stdClass)[1846]
      public \'year\' => string \'2013\' (length=4)
      public \'month\' => string \'7\' (length=1)
      public \'posts\' => string \'17\' (length=2)
  2 => 
    object(stdClass)[1845]
      public \'year\' => string \'2013\' (length=4)
      public \'month\' => string \'8\' (length=1)
      public \'posts\' => string \'8\' (length=1)
  3 => 
    object(stdClass)[1844]
      public \'year\' => string \'2013\' (length=4)
      public \'month\' => string \'9\' (length=1)
      public \'posts\' => string \'2\' (length=1)

然后，您可以循环遍历它，或者简单地获取第一个或最后一个数组项以获得范围。计数-count( $total_page_dates ) - 将告诉您得到了多少个月，等等。请记住，每个数组值都是object, 所以你必须这样访问它

$posts_in_first_month = total_page_dates[0]->posts;