Chodzi mi o ten kod, jak potrzeba więcej to napiszcie wkleję

Sprawa jest prosta, chcę żeby pokazywał on na przykład od 60 znaku do 140 znaku a niestety nie wiem jak się do tego zabrać.
<!-- Articles // --> <div class="ftop"> <div class="featured"> <div class="fthumbs"> <?php $i = 0; $featured = new WP_Query("cat=".get_wpn_config('featured_category_id')."&showposts=5"); while($featured->have_posts()) : $featured->the_post();?> <?php $i++; endwhile; $i = 0; ?> </div> <div class="fwrap"> <ul> <?php $featured = new WP_Query("cat=".get_wpn_config('featured_category_id')."&showposts=5"); while($featured->have_posts()) : $featured->the_post();?> <li> <a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>"><img src="<?php echo get_post_meta($post->ID, "featured_thumbnail", true); ?>" width="200" height="50" /> <div> <a class="title" href="<?php the_permalink(); ?>"><?php the_title(); ?></a><br /> <?php wpn_content_limit(get_the_content(),140); ?> <a href="<?php the_permalink(); ?>">more</a> </div> </li> <?php endwhile; ?> </ul> </div> </div> <div class="top"> <span class="heading1"><span>Articles</span></span> <ul> <?php $sql = " SELECT * FROM $wpdb->posts ORDER BY comment_count DESC LIMIT 5 "; $top_posts = $wpdb->get_results($sql); foreach ($top_posts as $post) { ?> <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a><span><a class="comments" href="<?php the_permalink(); ?>#comments"><?php echo $post->comment_count; ?> Comments</a>Posted Under: <?php the_category(', '); ?></span></li> <? } ?> </ul> </div> <div class="clear"></div> </div> <!-- // Articles -->