<?php
    //será para poder recuperar o ID do post, e manipular fora do loop
    $tags = array();
?>

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
<?php
        foreach(get_the_tags(get_the_ID()) as $tag) {
                $tags[] = $tag->slug ;
      }
?>


<?php endif; endwhile?>