IF HOT NEWS IS A TAG (FIRST QUESTION ASKED FOR TAGS)

您必须使用WP查询，其中您可以查询带有标记“quot；热门新闻”；并按帖子ID的降序排列结果，然后返回1篇帖子，如下所示：

$query_args = array(
  \'post_type\' => \'your_post_type\',
  \'tax_query\' => array(
    array(
      \'taxonomy\' => \'your_tag_taxonomy\',
      \'field\' => \'slug\',
      \'terms\' => \'hot_news\'
    )
  ),
  \'order_by\' => \'ID\',
  \'order\' => \'DESC\',
  \'posts_per_page\' => 1
);

// Fire WP post query
$my_query = new WP_Query( $query_args );

// Check if at least one matching post was found
if ( $my_query->have_posts() ) {

  // If yes, iterate through the found post(s)
  while ( $my_query->have_posts() ) {

    // Forward the post iterator to the currently iterated post of the loop.
    // Like this you\'ll be able to get the iterated posts\' content via the
    // ```get_the...``` etc. functions
    $my_query->the_post();

    $posts_title = get_the_title();
    $posts_excerpt = get_the_excerpt();
    $link = get_the_permalink();

    echo $posts_title." ".$posts_excerpt." ".$link;

  }

}

// Reset the global $post object (should always be done after post queries)
wp_reset_postdata();

IF HOT NEWS IS A META KEY (LATER ASKED FOR META)

如果要在metavalues函数中进行查询，则需要按照以下方式制定查询参数：

$query_args = array(
  \'post_type\' => \'your_post_type\',
  \'meta_query\' => array(
    array(
      \'key\' => \'hotnews-status\',
      \'value\' => 1,
      \'type\' => \'NUMERIC\'
    )
  ),
  \'order_by\' => \'ID\',
  \'order\' => \'DESC\',
  \'posts_per_page\' => 1
);

这两个查询背后的逻辑如下：每次创建新帖子时，该帖子都会在数据库中获得一个与之关联的自动递增ID值（意思是=最近添加帖子的ID+1）。要获取最新的帖子，请根据帖子ID按降序排列查询到的帖子，然后返回1篇帖子（查询的posts\\u per\\u page参数）。是的，然后添加任何额外需要的过滤器，例如标记/类别/分类法/元值/任何过滤器。清楚的