Show only posts who’s tags match page name

Why not just create a tag template?

Perhaps I misunderstand what you want, so this may not apply. What I think you want to do is create a template that can be assigned to several different pages, but have each page show only the posts that have a tag the same as the page title.

If that is correct, you could use something like this in the template:

<?php $tag = wp_title('',false);
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
query_posts("paged=$paged&tag=$tag);
// rest of loop
?>

Thanks for your help!

You are correct about what I am trying to achieve. However I tried getting that code you supplied to work and was having no luck. I believe (but I could be wrong) that in the last set if parenthesis you are missing a quotation mark however even after fixing that I was still having no luck. All I get is the title of the page displaying instead of the posts that have a tag which is the same title as the page.

You are correct about the missing quote mark – sorry about that. You need to replace the line ‘// rest of the loop’ with all of the code you need to display what you want to see. It depends on the theme, but it should look something like this:

if (have_posts()) : ?>
      <?php while (have_posts()) : the_post(); ?>

         <div <?php post_class() ?> id="post-<?php the_ID(); ?>">
            <h2><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h2>
            <small><?php the_time('F jS, Y') ?> by <?php the_author() ?></small>
            <div class="entry">
               <?php the_content('Read the rest of this entry &raquo;'); ?>
            </div>
            <p class="postmetadata"><?php the_tags('Tags: ', ', ', '<br />'); ?> Posted in <?php the_category(', ') ?> | <?php edit_post_link('Edit', '', ' | '); ?>  <?php comments_popup_link('No Comments »', '1 Comment »', '% Comments »'); ?></p>

            </div>

      <?php endwhile; ?> 

      <div class="navigation">
         <div class="alignleft"><?php next_posts_link('&laquo; Older Entries') ?></div>
         <div class="alignright"><?php previous_posts_link('Newer Entries &raquo;') ?></div>
      </div>

   <?php else : ?>

      <h2 class="center">Not Found</h2>
      <p class="center">Sorry, but you are looking for something that isn't here.</p>
      <?php get_search_form(); ?>

   <?php endif; ?>

If your code already looks something like that, post it in the pastebin so I can take a look.

I really appreciate you helping me out with this. Still no luck, I am probably just doing some stupid mistake with the code. I have been teaching wordpress to myself so there are some gaps in my knowledge.

Here is the link to the pastebin: https://wordpress.pastebin.com/h1Wx8Rn2

Thank you so much.

A couple of changes should make it work. First, wp_title is putting spaces in front of the title even though you gave an empty string. So we have to remove them later. Change this:

$tag = wp_title('',false);

to this:

$tag = preg_replace('/^ +/','',wp_title('',false));

Next, the query_posts arguments need to be in double quotes, like this:

query_posts("paged=$paged&tag=$tag");

Give that a try.