问题描述：
下面的代码来自一篇特色文章。php文件。将自定义帖子类型“特色文章”的此自定义模板从我的插件复制到活动主题文件夹。模板呈现良好。甚至是显示数组中数据的查询。
参见：print\\r（$featured\\u articles）的结果在第二部分
但“the\\u post（）”不显示任何帖子。代码有什么问题？
<?php
$featured_articles = new WP_Query(array(\'post_type\' => \'featured-article\'));
echo \'<pre>\';
print_r($featured_articles);
echo \'</pre>\';
if ($featured_articles->have_posts()):
while ($featured_articles->have_posts()) : $featured_articles->the_post();
// Include the single post content template.
get_template_part(\'template-parts/post/content\', get_post_format());
// If comments are open or we have at least one comment, load up the comment template.
if (comments_open() || get_comments_number()) {
comments_template();
}
if (is_singular(\'attachment\')) {
// Parent post navigation.
the_post_navigation(array(
\'prev_text\' => _x(\'<span class="meta-nav">Published in</span><span class="post-title">%title</span>\', \'Parent post link\', \'twentysixteen\'),
));
} elseif (is_singular(\'featured-article\')) {
// Previous/next post navigation.
the_post_navigation(array(
\'next_text\' => \'<span class="meta-nav" aria-hidden="true">\' . __(\'Next\', \'twentysixteen\') . \'</span> \' .
\'<span class="screen-reader-text">\' . __(\'Next post:\', \'twentysixteen\') . \'</span> \' .
\'<span class="post-title">%title</span>\',
\'prev_text\' => \'<span class="meta-nav" aria-hidden="true">\' . __(\'Previous\', \'twentysixteen\') . \'</span> \' .
\'<span class="screen-reader-text">\' . __(\'Previous post:\', \'twentysixteen\') . \'</span> \' .
\'<span class="post-title">%title</span>\',
));
}
// End of the loop.
endwhile;
endif;
?>
print\\u r（特色文章）结果：
WP_Query Object
(
[query] => Array
(
[post_type] => featured-article
)
[query_vars] => Array
(
[post_type] => featured-article
[error] =>
[m] =>
[p] => 0
[post_parent] =>
[subpost] =>
[subpost_id] =>
[attachment] =>
[attachment_id] => 0
[name] =>
[static] =>
[pagename] =>
[page_id] => 0
[second] =>
[minute] =>
[hour] =>
[day] => 0
[monthnum] => 0
[year] => 0
[w] => 0
[category_name] =>
[tag] =>
[cat] =>
[tag_id] =>
[author] =>
[author_name] =>
[feed] =>
[tb] =>
[paged] => 0
[meta_key] =>
[meta_value] =>
[preview] =>
[s] =>
[sentence] =>
[title] =>
[fields] =>
[menu_order] =>
[embed] =>
[category__in] => Array
(
)
[category__not_in] => Array
(
)
[category__and] => Array
(
)
[post__in] => Array
(
)
[post__not_in] => Array
(
)
[post_name__in] => Array
(
)
[tag__in] => Array
(
)
[tag__not_in] => Array
(
)
[tag__and] => Array
(
)
[tag_slug__in] => Array
(
)
[tag_slug__and] => Array
(
)
[post_parent__in] => Array
(
)
[post_parent__not_in] => Array
(
)
[author__in] => Array
(
)
[author__not_in] => Array
(
)
[ignore_sticky_posts] =>
[suppress_filters] =>
[cache_results] => 1
[update_post_term_cache] => 1
[lazy_load_term_meta] => 1
[update_post_meta_cache] => 1
[posts_per_page] => 2
[nopaging] =>
[comments_per_page] => 50
[no_found_rows] =>
[order] => DESC
)
[tax_query] => WP_Tax_Query Object
(
[queries] => Array
(
)
[relation] => AND
[table_aliases:protected] => Array
(
)
[queried_terms] => Array
(
)
[primary_table] => wp_posts
[primary_id_column] => ID
)
[meta_query] => WP_Meta_Query Object
(
[queries] => Array
(
)
[relation] =>
[meta_table] =>
[meta_id_column] =>
[primary_table] =>
[primary_id_column] =>
[table_aliases:protected] => Array
(
)
[clauses:protected] => Array
(
)
[has_or_relation:protected] =>
)
[date_query] =>
[request] => SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts WHERE 1=1 AND wp_posts.post_type = \'featured-article\' AND (wp_posts.post_status = \'publish\' OR wp_posts.post_status = \'private\') ORDER BY wp_posts.post_date DESC LIMIT 0, 2
[posts] => Array
(
[0] => WP_Post Object
(
[ID] => 433
[post_author] => 1
[post_date] => 2017-09-16 19:13:24
[post_date_gmt] => 2017-09-16 13:13:24
[post_content] => dsfsf fsf werfwe frewgtv r j tut ttyuytu u tyu
[post_title] => DCV featured article
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => dcv-featured-article
[to_ping] =>
[pinged] =>
[post_modified] => 2017-09-16 19:13:24
[post_modified_gmt] => 2017-09-16 13:13:24
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://rs-wordpress.com/?post_type=featured-article&p=433
[menu_order] => 0
[post_type] => featured-article
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
[1] => WP_Post Object
(
[ID] => 432
[post_author] => 1
[post_date] => 2017-09-16 18:49:05
[post_date_gmt] => 2017-09-16 12:49:05
[post_content] => chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon chloro-fluro carbon
[post_title] => cfc feature article
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => cfc-feature-article
[to_ping] =>
[pinged] =>
[post_modified] => 2017-09-16 18:49:05
[post_modified_gmt] => 2017-09-16 12:49:05
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://rs-wordpress.com/?post_type=featured-article&p=432
[menu_order] => 0
[post_type] => featured-article
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
)
[post_count] => 2
[current_post] => -1
[in_the_loop] =>
[post] => WP_Post Object
(
[ID] => 433
[post_author] => 1
[post_date] => 2017-09-16 19:13:24
[post_date_gmt] => 2017-09-16 13:13:24
[post_content] => dsfsf fsf werfwe frewgtv r j tut ttyuytu u tyu
[post_title] => DCV featured article
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => dcv-featured-article
[to_ping] =>
[pinged] =>
[post_modified] => 2017-09-16 19:13:24
[post_modified_gmt] => 2017-09-16 13:13:24
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://rs-wordpress.com/?post_type=featured-article&p=433
[menu_order] => 0
[post_type] => featured-article
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
[comment_count] => 0
[current_comment] => -1
[found_posts] => 3
[max_num_pages] => 2
[max_num_comment_pages] => 0
[is_single] =>
[is_preview] =>
[is_page] =>
[is_archive] => 1
[is_date] =>
[is_year] =>
[is_month] =>
[is_day] =>
[is_time] =>
[is_author] =>
[is_category] =>
[is_tag] =>
[is_tax] =>
[is_search] =>
[is_feed] =>
[is_comment_feed] =>
[is_trackback] =>
[is_home] =>
[is_404] =>
[is_embed] =>
[is_paged] =>
[is_admin] =>
[is_attachment] =>
[is_singular] =>
[is_robots] =>
[is_posts_page] =>
[is_post_type_archive] => 1
[query_vars_hash:WP_Query:private] => 8c6cb592fd6eb096f5db534a95e5b42c
[query_vars_changed:WP_Query:private] =>
[thumbnails_cached] =>
[stopwords:WP_Query:private] =>
[compat_fields:WP_Query:private] => Array
(
[0] => query_vars_hash
[1] => query_vars_changed
)
[compat_methods:WP_Query:private] => Array
(
[0] => init_query_flags
[1] => parse_tax_query
)
)
SO网友:Jacob Peattie
the_post() 不渲染任何内容。阅读the documentation:
检索下一篇文章，设置文章，将“循环中”属性设置为true。
所以它所做的就是设置它the_title() 或the_content() 在查询中循环使用当前帖子的标题和内容。
如果帖子没有呈现，可能是因为get_template_part(\'template-parts/post/content\', get_post_format()); 引用的模板不存在。您需要确保模板存在并使用正确的函数，如the_title(), 输出内容。the_post() 不输出任何内容。
编辑：或者更可能是这样：
$featured_articles > have_posts()
这不是正确的语法。
have_posts() 是上的方法
$featured_articles 所以需要这样写：
$featured_articles->have_posts()
