Помогите найти проблему не выводятся табы

<?php
$custom_query = new WP_Query( "posts_per_page=-1&category_name=$cat_name" );
  if ( $custom_query->have_posts() ) :
     while ( $custom_query->have_posts() ) : $custom_query->the_post();
          $posttags = get_the_tags();
            if ( $posttags ):
               foreach( $posttags as $tag ):
                   $all_tags[] = $tag->term_id;
                      endforeach;
                            endif;
                        endwhile;
                    endif;
                    $tags = array_unique($all_tags);
                    foreach ( $tags as $tag ):
                        $t = get_tag($tag);
                ?>
                    <li class="tab--page__item">
                        <a class="tab--page__link" data-tag="<?= $t->slug ?>"><?= $t->name ?></a>
                    </li>
         <?php endforeach; wp_reset_postdata(); ?>