mostCommented.php

<?php

// this goes in functions.php in your theme. Then you can use shortcode [most_commented] in posts and pages
// to get the top 150 posts
function mostCommented() {
	echo '<p>';
		$posts_per_page = 150;
		query_posts('orderby=comment_count&posts_per_page='.$posts_per_page.'&order=DESC');
		if ( have_posts() ) : while ( have_posts() ) : the_post();
			echo  '<a href="';
			the_permalink();
			echo '" rel="bookmark" title="';
			the_title_attribute('','',false);
			echo '">';
			the_title();
			echo '</a>';
			echo ' <span title="Number of comments: ';
			comments_number('0','1','%');
			echo '">(';
			comments_number('0','1','%');
			echo ')</span> <br />';
			echo "\n";
			endwhile;
		else :
			echo '<p>Sorry, no posts were found.</p>';
		endif;
	echo '</p>';
	// reset the query so when I use it it doesn't
	// cause posts to be displayed
	query_posts('tag=NOTAREALTAG');
	return $out;	
}

add_shortcode('most_commented', 'mostCommented');