wp_list_comments()

Sounds like you have an error in your callback function.

How can it be if i only copy and paste the codex code?

Ok I found my mistake.
Just forgot to put <?php

Next one:
My theme is coded with:
wp_list_comments('avatar_size='.$avsize);

I want to keep it as i would prefer to remain with the original avatar settings instead of doing it with the callback function.

I need to add this line to call the callback function:
<?php wp_list_comments('callback=mytheme_comment'); ?>

How can i add those two lines together please? only one <?php wp_list_comments()

Try <?php wp_list_comments('avatar_size='.$avsize . '&callback=mytheme_comment'); ?>

Thanks Esmi. It worked fine.
But still there is sthg wrong.
The header and the footer changed of colors for example.

I don’t think it is connected to your code but rather because i added mytheme_comment function in the theme.

Here are the changes i have made so far:

1. functions.php

I added this code at the end of the file:

<?php
function im_comment($comment, $args, $depth) {
   $GLOBALS['comment'] = $comment; ?>
   <li <?php comment_class(); ?> id="li-comment-<?php comment_ID() ?>">
	 <div id="comment-<?php comment_ID(); ?>">
	  <div class="comment-author vcard">
		 <?php echo get_avatar($comment,$size='48',$default='<path_to_url>' ); ?>
		 <?php printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link()) ?>
	  </div>
	  <?php if ($comment->comment_approved == '0') : ?>
		 <em><?php _e('Your comment is awaiting moderation.') ?></em>
		 <br />
	  <?php endif; ?>
	  <div class="comment-meta commentmetadata"><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>
	  <?php comment_text() ?>
	  <div class="reply">
		 <?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
	  </div>
	 </div>
<?php
		}
?>

2.comments.php

I replaced the following line:
wp_list_comments('avatar_size='.$avsize);

with:
wp_list_comments('avatar_size='.$avsize.'&callback=im_comment');

How can i avoid to loose the original configuration of my theme that i have made through the admin panel?

Thanks,

I don’t see how a comment callback function would affect you header and footer styling unless you inadvertently:

– removed something from functions.php when you added your callback

– or introduced a validation error into your pages.

Have you tried validating your pages and correcting any markup errors?

Thanks for your help.
How can you validate pages when your work on a local server pls?

If you use Firefox, the Web Developer Toolbar add-on allows you to submit local pages to the online validator. There’s also an HTML Validator add-on that parses pages on the fly – even local ones.

Other than that, you could copy your page’s output and use the direct input option in the W3C Validator.

I found out that if i was including the callback function within <?php … ?> like this :

<?php
....
function mytheme_comment($comment, $args, $depth) {
   $GLOBALS['comment'] = $comment; ?>
   <li <?php comment_class(); ?> id="li-comment-<?php comment_ID() ?>">
     <div id="comment-<?php comment_ID(); ?>">
      <div class="comment-author vcard">
         <?php echo get_avatar($comment,$size='48',$default='<path_to_url>' ); ?>

         <?php printf(__('<cite class="fn">%s</cite> <span class="says">dit:</span>'), get_comment_author_link()) ?>
      </div>
      <?php if ($comment->comment_approved == '0') : ?>
         <em><?php _e('Your comment is awaiting moderation.') ?></em>
         <br />
      <?php endif; ?>

      <div class="comment-meta commentmetadata"><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>

      <?php comment_text() ?>

      <div class="reply">
         <?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
      </div>
     </div>
<?php
        }
?>

it was working better than adding at the end the following code:

<?php
function im_comment($comment, $args, $depth) {
   $GLOBALS['comment'] = $comment; ?>
   <li <?php comment_class(); ?> id="li-comment-<?php comment_ID() ?>">
     <div id="comment-<?php comment_ID(); ?>">
      <div class="comment-author vcard">
         <?php echo get_avatar($comment,$size='48',$default='<path_to_url>' ); ?>
         <?php printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link()) ?>
      </div>
      <?php if ($comment->comment_approved == '0') : ?>
         <em><?php _e('Your comment is awaiting moderation.') ?></em>
         <br />
      <?php endif; ?>
      <div class="comment-meta commentmetadata"><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>
      <?php comment_text() ?>
      <div class="reply">
         <?php comment_reply_link(array_merge( $args, array('depth' => $depth, 'max_depth' => $args['max_depth']))) ?>
      </div>
     </div>
<?php
        }
?>

To call the function, i used:
wp_list_comments('avatar_size='.$avsize.'&callback=im_comment');

and after:
wp_list_comments('avatar_size='.$avsize.'type=comment&callback=im_comment');

As a result, the theme and its parameters are remaining but the comments are not showing.