Break WP_Query posts into separate columns

wp-query-posts-into-columns.php

<?php
// Custom WP_Query
$args = array();
$my_query = new WP_Query( $args );

if ( $my_query->have_posts() ) :
	// Number of columns
	$col_count = 3;
	// Get post count
	$post_count = $my_query->found_posts;
	// Count how many posts will go into each column, rounding fractions up
	$posts_per_col = ceil( $post_count / $col_count );
	$i = 0;

?>

	<div class="span_1_of_<?php echo $col_count; ?> col-1 col clr">

	  <ul>

	    <?php while ( $my_query->have_posts() ) : $my_query->the_post(); ?>

	      <?php if ( $posts_per_col == $i ) :
					// Reset post counter for new column
					// End previous column and start the next one
					$i = 0; ?>

	          </ul> <!-- end posts list -->

	        </div> <!-- end column -->

	        <div class="span_1_of_<?php echo $col_count; ?> col-1 col clr">

	          <ul>

	      <?php endif; ?>

	      <li><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></li> <!-- end single post -->

	    <?php
				// Increment post counter
				$i++;
				// End loop
				endwhile;
				// Reset post data after custom loop has finished
				wp_reset_postdata();
	    ?>

	  </ul> <!-- end posts list -->

	</div> <!-- end column -->

<?php endif; ?>