Comment Callback For WordPress

comment-callback.php

<?php 
/**
 * Callback to render custom comment markup
 */
function project_name_comment( $comment, $args, $depth ) {
	$GLOBALS['comment'] = $comment;

	// Proceed with normal comments.
	global $post;
	?>
	<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
		<article id="comment-<?php comment_ID(); ?>" class="comment">
			<header class="comment-meta comment-author vcard">

				<?php
					if ( has_wpml_category( 'videos' ) ) {
						$default_avatar_url = 'video-avatar.png';
					}
					elseif ( has_wpml_category( 'imatges' ) ) {
						$default_avatar_url = 'photo-avatar.png';
					}
					elseif ( has_wpml_category( 'audios' ) ) {
						$default_avatar_url = 'audio-avatar.png';
					}
					else {
						$default_avatar_url = 'text-avatar.png';
					}
					$default_avatar_url = get_template_directory_uri() . "/images/" . $default_avatar_url;

				?>

				<?php echo get_avatar( $comment, 79, $default_avatar_url ); ?>

				<div class="comment-on">
					<?php
						printf( '<cite><b class="fn">%1$s</b> %2$s</cite> | ',
							get_comment_author_link(),
							// If current post author is also comment author, make it known visually.
							( $comment->user_id === $post->post_author ) ? '<span>' . __( "Autor de l'entrada", 'minoria-absoluta' ) . '</span>' : ''
						);
						printf( '<time datetime="%1$s">%2$s</time></a>',
							get_comment_time( 'c' ),
							sprintf( __( '%1$s', 'minoria-absoluta' ), get_comment_date( 'd.m.Y' ) )
						);
					?>

					<?php if ( '0' == $comment->comment_approved ) : ?>
						<p class="comment-awaiting-moderation"><?php _e( 'El comentari està esperant moderació.', 'minoria-absoluta' ); ?></p>
					<?php endif; ?>

				</div>

			</header><!-- .comment-meta -->

			<section class="comment-content comment">
				<?php comment_text(); ?>
			</section><!-- .comment-content -->

		</article><!-- #comment-## -->
	<?php
}