I'm focusing on redecorating my website and discover myself requiring to show publish excerpts on my small sidebar. the_excerpt() appeared such as the right factor to make use of however i am also using excerpts on my small primary website. The 55 word limit looks good on my small home page although not my sidebar. I want a method to limit what came back within the_excerpt ONLY during my sidebar.

<div id="sidebar">
    <a href="<?php the_permalink(); ?>" title="Permalink to <?php the_title(); ?>">
        <?php the_title() ?> 
    </a>
    <?php the_excerpt(); ?>
</div>

I would like for within the sidebar, the excerpt length to become restricted to 30 words

You should use substr()

<div id="sidebar">
    <a href="<?php the_permalink(); ?>" title="Permalink to <?php the_title(); ?>">
        <?php the_title() ?> 
    </a>
    <?php $mycontent=get_the_excerpt(); 
      echo substr($mycontent,0,20);
    ?>
</div>