[WordPress] Showing how to easily separate comments and pingbacks using separate callback functions.

comment-callback.php

<?php
function acme_comment( $comment, $args, $depth ) {

	$GLOBALS['comment'] = $comment;
	extract( $args, EXTR_SKIP );
	?>
	<div <?php comment_class( empty( $args['has_children'] ) ? '' : 'parent' ) ?> id="comment-<?php comment_ID(); ?>">
		<div class="comment-body" id="div-comment-<?php comment_ID(); ?>">

			<div class="comment-author vcard">

				<span class="avatar">
					<?php echo get_avatar( $comment, $args['avatar_size'] ); ?>
				</span><!-- .avatar -->

				<div class="comment-meta-wrapper">
					<span class="comment-meta">
						<?php printf(  '<cite class="fn">%s</cite>', get_comment_author_link() ); ?>
						<a href="<?php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) ?>">
							<?php printf( __('%1$s at %2$s'), get_comment_date(),  get_comment_time()) ?>
						</a>
						<?php edit_comment_link( __( 'Edit' ), '<div class="comment-edit-link-wrapper">', '</div>' ); ?>
					</span><!-- .comment-meta -->
				</div><!-- .comment-meta-wrapper -->

			</div><!-- .comment-author -->

			<div class="comment-text">
				<?php if ( '0' === $comment->comment_approved ) { ?>
					<div class="comment-moderation-notice">
						<em class="comment-awaiting-moderation">
							<?php _e( 'Your comment is awaiting moderation.' ); ?>
						</em><!-- .comment-awaiting-moderation -->
					</div><!-- .comment-moderation-notice -->
				<?php } // end if ?>
				<?php comment_text(); ?>
			</div><!-- .comment-text -->

			<div class="reply">
				<?php
					comment_reply_link(
						array_merge(
							$args,
							array(
								'add_below'    => 'comment',
								'depth'        => $depth,
								'max_depth'    => $args['max_depth']
							)
						)
					);
				?>
			</div><!-- .reply -->

		</div><!-- .comment-body -->
	</div><!-- #div-comment-<?php comment_ID(); ?>-->
	<?php
} // end acme_comment

comments.php

<div id="comments" class="comments-area">

  <?php 
    /* Don't forget to check if comments are open 
     * or if there are comments to display.
     */
  ?>
  
  <h3 class="response-title">
  <?php
	printf(
		_n(
			'One Comment', '%1$s Comments',
			get_comments_number()
		),
		number_format_i18n( get_comments_number() )
	);
  ?>
  </h3>
  
		<div class="comment-list">
		<?php
			wp_list_comments(
				array(
					'type'       => 'comment',
					'callback'   => 'acme_comment',
					'avatar_size'=> 100
				)
			);
		?>
		</div><!-- .comment-list -->
		
		<h3 class="response-title">
			Trackbacks and Pingbacks
		</h3>

		<div class="ping-list">
		<?php
			wp_list_comments(
				array(
					'type'       => 'pings',
					'callback'   => 'example_pings',
					'avatar_size'=> 100
				)
			);
		?>
		</div><!-- .ping-list -->
		
</div><!-- #comments -->

pingback-callback.php

<?php

function acme_pings( $comment, $args, $depth ) {

	$GLOBALS['comment'] = $comment;
	extract( $args, EXTR_SKIP );
	?>
	<div <?php comment_class( empty( $args['has_children'] ) ? '' : 'parent' ) ?> id="comment-<?php comment_ID(); ?>">
		<div class="ping-body" id="div-ping-<?php comment_ID(); ?>">

			<div class="ping-author vcard">
				<div class="ping-meta-wrapper">
					<span class="ping-meta">
						<?php
						printf(  '<cite class="fn">%s</cite>', get_comment_author_link() );
						printf( __('%1$s at %2$s'), get_comment_date(),  get_comment_time() );
						?>
					</span><!-- .ping-meta -->
				</div><!-- .ping-meta-wrapper -->
			</div><!-- .ping-author -->

			<div class="ping-text">
				<?php comment_text(); ?>
			</div><!-- .ping-text -->

		</div><!-- .ping-body -->
	</div><!-- #div-ping-<?php comment_ID(); ?>-->
	<?php
} // end acme_pings