how to get the current category name of the page inside functions.php?this is for adding a load more functionality based on a category per page.
this is what my current code looks like
add_filter('query_vars', 'registering_custom_query_var');function registering_custom_query_var($query_vars){ $query_vars[] = 'id'; // Change it to your desired name return $query_vars;}function more_post_ajax() { global $wp_query; $ppp = (isset($_POST["ppp"])) ? $_POST["ppp"] : 1; $page = (isset($_POST['pageNumber'])) ? $_POST['pageNumber'] : 0; $category = get_category(get_query_var('cat')); header("Content-Type: text/html"); $args = array('post_type' => 'post','posts_per_page' => $ppp,'category_name' => $category->name,'paged' => $page, ); $loop = new WP_Query($args); $out = ''; if ($loop->have_posts()) : while ($loop->have_posts()) : $loop->the_post(); $out .= '<div class="article_card"><div class="article_card__thumbnail">' . get_the_post_thumbnail() . '</div><div class="article_card__content"><h3><a href="' . get_the_permalink() . '">' . get_the_title() . '</a></h3><p class="body-small">' . wp_trim_words( get_the_excerpt(), 60 ) . '</p><a a href="' . get_the_permalink() . '"> Learn more →</a></div></div>'; endwhile; endif; wp_reset_postdata(); die($out);}add_action('wp_ajax_nopriv_more_post_ajax', 'more_post_ajax');add_action('wp_ajax_more_post_ajax', 'more_post_ajax');