Functions.php中的上次更新帖子快捷代码

我正在搜索在函数中创建一个短代码。php子主题，用缩略图显示上次更新的帖子。我有以下代码可用于页面模板：

    <ol class="list-numbered">
    <?php
    // Show recently modified posts
    $recently_updated_posts = new WP_Query( array(
        \'post_type\'      => \'post\',
        \'posts_per_page\' => \'13\',
        \'orderby\'        => \'modified\',
        \'no_found_rows\'  => \'true\' // speed up query when we don\'t need pagination
    ) );
    if ( $recently_updated_posts->have_posts() ) :
        while( $recently_updated_posts->have_posts() ) : $recently_updated_posts->the_post(); ?>
            <li><a href="<?php the_permalink(); ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?>
<?php
$size = \'thumbnail\'; 
 $attachments = get_children( array(
        \'post_parent\' => get_the_ID(),
        \'post_status\' => \'inherit\',
        \'post_type\' => \'attachment\',
        \'post_mime_type\' => \'image\',
        \'order\' => \'ASC\',
        \'orderby\' => \'menu_order ID\',
        \'numberposts\' => 1)
    );
    foreach ( $attachments as $thumb_id => $attachment ) {
        echo wp_get_attachment_image($thumb_id, $size);
    }
?>
</a></li>
        <?php endwhile; ?>
        <?php wp_reset_postdata(); ?>
    <?php endif; ?>
</ol>

但我会在函数中插入。php文件，并调用短代码。你有什么想法吗？提前谢谢。

// register shortcode add_shortcode(\'last-modified\', \'last_mofied_shortcode_callback\'); function last_mofied_shortcode_callback() { $output = \'<ol class="list-numbered">\'; $recently_updated_posts = new WP_Query( array( \'post_type\' => \'post\', \'posts_per_page\' => \'13\', \'orderby\' => \'modified\', \'no_found_rows\' => \'true\' // speed up query when we don\'t need pagination ) ); if ( $recently_updated_posts->have_posts() ) : while( $recently_updated_posts->have_posts() ) : $recently_updated_posts->the_post(); $output .= \'<li><a href="\'.get_the_permalink().\'" rel="bookmark" title="\'.get_the_title().\'">\'.get_the_title(); $size = \'thumbnail\'; $attachments = get_children( array( \'post_parent\' => get_the_ID(), \'post_status\' => \'inherit\', \'post_type\' => \'attachment\', \'post_mime_type\' => \'image\', \'order\' => \'ASC\', \'orderby\' => \'menu_order ID\', \'numberposts\' => 1)); foreach ( $attachments as $thumb_id => $attachment ) { $output .= wp_get_attachment_image($thumb_id, $size); } $output .= \'</a></li>\'; endwhile; wp_reset_postdata(); endif; return $output; }

Shortcode called twice

我正在使用一个快捷代码处理我的产品信息，它可以自动生成一个包含信息的表。但这个短代码似乎被调用了两次。我不是一个优秀的后端开发人员，但我正在努力学习一些基础知识，以便能够制作一些基本的PHP函数。我非常感谢你的帮助。提前谢谢。我的代码如下所示：function displayTable() { echo \'<table>\'; echo \'<tbody>\'; $fields = get_field_objects();&

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Shortcode called twice