我有以下代码，当您单击父类别时，它会在单独的页面上列出子类别。代码呈现如下列表：
主页›IQ第7期存档
日志
新闻
世界观
然而，我想从每个类别中检索最新的帖子，并打印在类别名称下面。我如何在下面的循环中实现这一点？我尝试了几个foreach循环，但似乎都没有打印出正确的信息。提前谢谢。
类别php
<?php $this_category = get_queried_object();
// if parent is 0, category is top level
if( 0 == $this_category->parent ) :
// top level category,
// show child categories of this issue
$args = array(
\'child_of\' => $this_category->term_id,
\'title_li\' => \'\',
\'hide_empty\' => 0
); ?>
<!-- output a list of child cats for this issue
see also get_categories or get_terms if you wish to use your own markup-->
<?php wp_list_categories($args); ?>
<?php else :
// child category,
// show articles in this subcategory, etc.
echo \'child category\';
endif; ?>
最合适的回答,由SO网友:Daniel 整理而成
使用获取所有子类别get_terms(). 循环遍历每个术语，并使用tax_query.
示例：
<?php if ( get_queried_object()->parent == 0 ) : // parent cat ?>
<h2>Showing all children</h2>
<?php
$args = array(
\'hide_empty\' => false,
\'parent\' => get_queried_object()->term_id
);
$terms = get_terms( \'category\', $args );
if ( $terms ) echo \'<ul>\';
foreach( $terms as $term ) {
$the_post = new WP_Query(array(
\'posts_per_page\' => 1,
\'tax_query\' => array(
array(
\'taxonomy\' => \'category\',
\'field\' => \'id\',
\'terms\' => $term->term_id
)
)
));
?>
<?php while ( $the_post->have_posts() ) : $the_post->the_post(); ?>
<li><a href="<?php echo get_term_link( $term, \'category\'); ?>"><?php echo $term->name; ?></a> (Last article: <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>)</li>
<?php endwhile; wp_reset_query(); ?>
<?php
} //endforeach
if ( $terms ) echo \'</ul>\';
?>
<?php else: // child ?>
<?php
while ( have_posts() ) : the_post();
get_template_part( \'content\', get_post_format() );
endwhile;
?>
<?php endif; ?>
