Load more in archive based on tag

I am working on a load more button that loads posts in the archive.php based on tags. I have gotten the load more button to work on a custom post type and regular posts using this example, https://artisansweb.net/load-wordpress-post-ajax/. The archive page is little different because this loop is creating itself based on slug. Here is my current working loop on the archive.php

<?php
$term_slug = get_queried_object()->slug;

$loop = new WP_Query( array( ‘post_type’ => ”, ‘tag’ =>
$term_slug, ‘posts_per_page’ => 3 ) ); ?>
<ul class=”my-archive”>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

<li class=”blog-box”>
<div class=”blog-bullet-img”>
<a href=”<?php the_permalink(); ?>” title=”<?php
the_title_attribute(); ?>”>
<?php the_post_thumbnail(); ?>
</a>
</div>
<div class=”news-full-descrip”>
<p class=”blog_title”><?php the_title(); ?></p>
<p class=”blog_date”><?php echo get_the_date(); ?></p>
<p class=”blog-textarea”><?php echo get_the_excerpt(); ?></p>
</div>
</li>

<?php endwhile; // End the loop. ?>

</ul>

<div class=”loadmore_three”><span>Load More</span></div>
</div>

<script type=”text/javascript”>
var ajaxurl = “<?php echo admin_url( ‘admin-ajax.php’ ); ?>”;
var page = 2;
jQuery(function($) {
$(‘body’).on(‘click’, ‘.loadmore_three’, function() {
var data = {
‘action’: ‘load_posts_by_ajax_three’,
‘page’: page,
‘security_three’: ‘<?php echo
wp_create_nonce(“load_more_posts_three”); ?>’
};

$.post(ajaxurl, data, function(response) {
$(‘.my-archive’).append(response);
page++;
});
});
});
</script>

In the functions.php I have added a slightly modified version of this loop adding $paged so it coincides with the example in my above link. This currently returns all posts and does not filter the tag by slug when you click the load more.

// The Archive post type load more function
add_action(‘wp_ajax_load_posts_by_ajax_three’,
‘load_posts_by_ajax_callback_three’);
add_action(‘wp_ajax_nopriv_load_posts_by_ajax_three’,
‘load_posts_by_ajax_callback_three’);

function load_posts_by_ajax_callback_three() {
check_ajax_referer(‘load_more_posts_three’, ‘security_three’);

$term_slug = get_queried_object()->slug;
$paged = $_POST[‘page’];
$loop = new WP_Query( array( ‘post_type’ => ”, ‘tag’ => $term_slug,
‘posts_per_page’ => 3, ‘paged’ => $paged, ) ); ?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

<li class=”blog-box”>
<div class=”blog-bullet-img”>
<a href=”<?php the_permalink(); ?>” title=”<?php
the_title_attribute(); ?>”>
<?php the_post_thumbnail(); ?>
</a>
</div>
<div class=”news-full-descrip”>
<p class=”blog_title”><?php the_title(); ?></p>
<p class=”blog_date”><?php echo get_the_date(); ?></p>
<p class=”blog-textarea”><?php echo get_the_excerpt(); ?></p>
</div>
</li>

<?php endwhile; wp_die(); }

I’m not great at PHP but have been reading a lot and trying to understand it better. When you click load more I would like this to return the posts with the same tag as the current URL or slug.

Read more here:: Load more in archive based on tag

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