如何在WordPress中显示标签‘video’的4篇最新文章？

Hey there! The problem with your current code is that you haven’t specified a limit on how many posts to display—right now it’s defaulting to showing every post tagged "video". Let’s fix that, plus I’ll share a better practice approach too.

Quick Fix For Your Existing Code #

Just add the posts_per_page=4 parameter to your query_posts call. I also included a reset for the main query at the end, which is crucial to avoid messing up other parts of your site:

<?php query_posts('tag=video&posts_per_page=4'); ?>
    <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
        <?php the_title(); ?>
        <?php endwhile; ?>
    <?php else : ?>
        no video
   <?php endif; ?>
<?php wp_reset_query(); ?> <!-- Resets the main query to its original state -->

Better Practice: Use WP_Query Instead #

While the above fix works, WordPress officially recommends avoiding query_posts because it alters the main page query and can cause unexpected issues. A cleaner, more reliable approach is to use WP_Query, which creates a separate, isolated query:

<?php
// Create a custom query for video-tagged posts
$video_posts = new WP_Query(array(
    'tag' => 'video',
    'posts_per_page' => 4,
    'orderby' => 'date', // Explicitly set to sort by date (default behavior)
    'order' => 'DESC' // Show latest posts first (also default, but clear here)
));

// Loop through the custom query results
if ($video_posts->have_posts()) :
    while ($video_posts->have_posts()) : $video_posts->the_post(); ?>
        <?php the_title(); ?>
    <?php endwhile;
    wp_reset_postdata(); // Reset post data back to the main query
else : ?>
    no video
<?php endif; ?>

This method keeps your main page query intact and follows WordPress best practices, making your code more maintainable long-term.

内容的提问来源于stack exchange，提问作者x1024