$20
How can I add a list of related posts by tag within my RSS feed?

In the RSS for my site, at the bottom of each entry I want an unordered list of related posts by tag. I tried this but it didn't work -





<?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) {

  echo 'Related Posts';

  $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

   );



?>

Jen Tidwell | 12/07/09 at 10:37pm | Edit

code, rss, unordered list

(8) Possible Answers Submitted...

Last edited:
12/08/09
12:54pm

Jean-Baptiste Jung says:

Partial solution, hope it helps you or another developer :

<?php

function insertRelatedPosts($content) {

    // Code to get the related posts goes here

    // see http://www.wprecipes.com/how-to-show-related-posts-without-a-plugin

}

add_filter('the_excerpt_rss', 'insertRelatedPosts');

add_filter('the_content_rss', 'insertRelatedPosts');

?>

Last edited:
12/08/09
12:55pm

Dan Davies says:



<?php

$tags = wp_get_post_tags($post->ID);

if ($tags) {

	$tag_ids = array();

	foreach($tags as $individual_tag) $tag_ids[] = $individual_tag->term_id;



	$args=array(

		'tag__in' => $tag_ids,

		'post__not_in' => array($post->ID),

		'showposts'=>5, // Number of related posts that will be shown.

		'caller_get_posts'=>1

	);

	$my_query = new wp_query($args);

	if( $my_query->have_posts() ) {

		echo '<h3>Related Posts</h3><ul>';

		while ($my_query->have_posts()) {

			$my_query->the_post();

		?>

			<li><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>

		<?php

		}

		echo '</ul>';

	}

}

?>

Last edited:
12/08/09
1:29pm

nvartolomei says:

<?php

/*

 * use this within the loop

 */



    /*

     * initialize $tags variable, although php will output notice

     */

    $tags = NULL;

    

    /*

     * we need to get all tags of current posts separated by comma

     */

    foreach(get_the_tags() as $tag) {

        $tags .= $tag->name . ",";

    }

    

    /*

     * we already have all tags listed in $tags variable, 

     * now we need to get 5 posts with that tags, 

     * I didn't set the limit, becouse by deafult it's 5

     */

    $posts_to_operate_with = get_posts('tag=' . $tags);

    

    /*

     * we need to know how many posts we get

     */

    $number_of_posts = count($posts_to_operate_with);

    

    /*

     * if we have posts then go next

     */

    if ($number_of_posts > 1) {

        

        if ($number_of_posts < 5) {

            

            /*

             * if number of posts is not equal to 5 then it will be the limit

             */

            $limit = $number_of_posts;

        }

        

        /*

         * open unordered list tag

         */

        echo "<ul>";

        for($i = 0; $i < $limit; $i++) : 

        $my_post = $posts_to_operate_with[$i];

        

        /*

         * display link for each post

         */

        ?>

        

        <li><a href="<?php echo $my_post->guid; ?>"><?php echo $my_post->post_title; ?></a></li>

        

        <?php endfor;

        

        /*

         * close unordered list tag

         */

        echo "</ul>";

    }

?>

Last edited:
12/08/09
1:29pm
nvartolomei says:
And yeah, I'm not a wp developer.
Last edited:
12/08/09
1:31pm
Arun Balasubramanian says:
Other than the above codes, Here is a simple plugin to check it out (if you want) "Related Posts by Tags" plugin, which simply can do any/all of the following..
1. Related posts by tags in a widget
2. Related posts by tags under a single post and
3. Related posts by tags under every post in Rss Feed
Last edited:
12/09/09
2:51am
whiking says:
Im using the plugin (yarpp) in order to display related posts in my posts. However there is also an option to include this into your rssfeed, thru a simple checkbox.

There are some options that you can tweak to your liking, like on what to put xtra weight on, categories and/or tags, or perhaps date and so forth and so on.

Read more about the plug in over @ wordpress/extends

Good Luck
//w

Last edited:
12/10/09
6:03pm

Gilbert Pellegrom says:

Hi. Here is a working and tested implementation. Simply put this code in your "functions.php" file.



function feed_related_posts($content)

{

	global $post;

	$showposts = 5;

	

	if(is_feed()){

		$tags = wp_get_post_tags($post->ID);

		if($tags) {

			$first_tag = $tags[0]->term_id;

			$args=array(

				'tag__in' => array($first_tag),

				'post__not_in' => array($post->ID),

				'showposts'=>$showposts,

				'caller_get_posts'=>1

			);

			

			$my_query = new WP_Query($args);

			if($my_query->have_posts()) {

				$content .= '<h3>Related Posts</h3>';

				$content .= '<ul>';

				while ($my_query->have_posts()) { 

					$my_query->the_post();

					$content .= '<li><a href="'. get_permalink() .'" title="Permanent Link to '. the_title_attribute('echo=0') .'">'. get_the_title() .'</a></li>';

				}

				$content .= '</ul>';

			}

		}

	}

	return $content;

}

add_filter('the_content','feed_related_posts');

Last edited:
12/09/09
12:13pm
Adam Kayce says:
Use the "Yet Another Related Posts Plugin" : http://mitcho.com/code/yarpp/ and http://wordpress.org/extend/plugins/yet-another-related-posts-plugin/ .

Quick and easy.