ianb-1

Wp Recipes has a cod snippit that shows related post via tag. The original code on the page has an issue that it does close the wp_query and it will mess up your comments, if they fall after.

The original code can be found here:
http://www.wprecipes.com/how-to-show-related-posts-without-a-plugin/

Below is my modified version that fixes that wp_query problem using wp_reset_query();

<?php
  //for use in the loop, list 5 post titles related to first tag on current post
  $tags = wp_get_post_tags($post->ID);
  if ($tags) {

    $first_tag = $tags[0]->term_id;
    $args=array(
      'tag__in' => array($first_tag),
      'post__not_in' => array($post->ID),
      'showposts'=>5,
      'caller_get_posts'=>1
     );
        $my_query = new WP_Query($args);

        if( $my_query->have_posts() ) {
            echo '<div class="hr_bottom"></div><div id="relatedContent"><ul><h2>Related Posts</h2>';

          while ($my_query->have_posts()) : $my_query->the_post(); ?>
            <li><span class="title"><a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></span> <span class="meta"> - <?php the_time('l, F j, Y G:i'); ?> - <a href="<?php the_permalink() ?>#commenting" title="Jump to the comments"><?php comments_number('0 Comments','1 Comment','% Comments'); ?></a></span></li>

             <?php
        endwhile;
    wp_reset_query();
      }
  echo '</ul></div>';
}
?>