wordpress shortcode php coding help

[pasuay]

Any expert can help to convert the following codes into a php function returning the output? ( for wordpress shortcode )

So much thanks!

 

	<ul>
	<?php
	
	    $rPosts = new WP_Query();
	    $rPosts->query('showposts=5&offset=0');
	        while ($rPosts->have_posts()) : $rPosts->the_post(); ?>
	            <li class="recent-post-special">
	                <a href="<?php the_permalink();?>"><?php the_post_thumbnail('recent-thumbnails'); ?></a>
	                <p class="recent-post-special font2"><a class="recent-post-special" href="<?php the_permalink(); ?>"><?php the_title();?></a></p>
	            </li><div class="clear"> </div>
	        <?php endwhile;
	    wp_reset_query();?>
	</ul>