按 WordPress 分类展示文章列表

通过下面的代码可以实现WordPress文章按分类展示文章列表，将代码放在分类归档页面，当该分类有子分类时，则显示子分类文章列表，无子分类则显示该分类列表，将代码放在首页，则所有文章按分类以列表形式展示。

$current_cat = get_queried_object();
echo \'父分类名称: \'.$current_cat->name;
$subcategories = get_categories(
	array( \'parent\' => $current_cat->term_id )
);

// 判断是否有子分类
if( !empty( $subcategories ) ) {
	foreach( $subcategories as $cat ) {
		echo \'<br><b>分类名称: \'.$cat->name.\'</b><br>\';
		$cat_posts = get_posts( array(
			\'posts_per_page\' => -1,
			\'category\'       => $cat->term_id
		) );
 
		if ( $cat_posts ) {
			foreach ( $cat_posts as $post ) :
				echo \'<a href=\"\'.get_permalink().\'\">\'.$post->post_title.\'</a><br>\';
			endforeach;
		}
	}
} else {
	$cat_posts = get_posts( array(
		\'posts_per_page\' => -1,
		\'category\'       => $current_cat->term_id
	) );

	if ( $cat_posts ) {
		foreach ( $cat_posts as $post ) :
			echo \'<a href=\"\'.get_permalink().\'\">\'.$post->post_title.\'</a><br>\';
		endforeach;
	}
}