How to create wordpress page that shows posts with specific tags?

2 comments

1. I’m pretty sure I always read on here that new WP_Query() is recommended over query_posts. Additionally you can use the Transient API to improve performance on additional queries. Place this in whatever template where you’d like the list to display:

   // Get any existing copy of our transient data
   if ( false === ( $my_special_tag = get_transient( 'my_special_tag' ) ) ) {
       // It wasn't there, so regenerate the data and save the transient
   
      // params for our query
       $args = array(
           'tag' => 'foo'
          'posts_per_page'  => 5,
       );
   
       // The Query
       $my_special_tag = new WP_Query( $args );
   
       // store the transient
       set_transient( 'my_special_tag', $my_special_tag, 12 * HOUR_IN_SECONDS );
   
   }
   
   // Use the data like you would have normally...
   
   // The Loop
   if ( $my_special_tag ) :
   
       echo '<ul class="my-special-tag">';
   
       while ( $my_special_tag->have_posts() ) :
           $my_special_tag->the_post();
           echo '<li>' . get_the_title() . '</li>';
       endwhile;
   
       echo '</ul>';
   
   else :
   
   echo 'No posts found.';
   
   endif;
   
   /* Restore original Post Data
    * NB: Because we are using new WP_Query we aren't stomping on the
    * original $wp_query and it does not need to be reset.
   */
   wp_reset_postdata();
   

   And in your function.php you will need to clear out the transient when things are updated:

   // Create a function to delete our transient when a post is saved or term is edited
   function delete_my_special_tag_transient( $post_id ) {
       delete_transient( 'my_special_tag' );
   }
   add_action( 'save_post', 'delete_my_special_tag_transient' );
   add_action( 'edit_term', 'delete_my_special_tag_transient' );
   

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2. Before the loop, use query_posts function

   query_posts( 'tag=foo' );
   

   This will returns all posts with the assigned tag.

   <?php
   // retrieve post with the tag of foo
   query_posts( 'tag=foo' );
   // the Loop
   while (have_posts()) : the_post();
       the_content( 'Read the full post »' );
   endwhile;
   ?>
   

   You can also use it to return posts with multiple tags

   query_posts( 'tag=foo,bike' );
   

   For further parameters and reference, see
   http://codex.wordpress.org/Class_Reference/WP_Query#Parameters
   http://codex.wordpress.org/Function_Reference/query_posts

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