How do I add class to an admin comment?

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When I customize the wp_list_comments() output, how do I add a class to the admin comments?

Relevant code:

<?php wp_list_comments( array( 'style' => 'ol', 'callback' => 'custom_list_comments' ) ); ?>

---

<?php
if( ! function_exists( 'custom_list_comments' ) ):
function custom_list_comments( $comment, $args, $depth ) {
?>
<li id="comment-<?php comment_ID() ?>">
    <?php echo get_avatar( $comment, 48 ); ?>
    <?php comment_text(); ?>
    <span><?php echo get_comment_author() ?></span>
    <time><?php comment_time(); ?></time>
    <?php comment_reply_link( array_merge( $args, array( 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
    <?php edit_comment_link(); ?>
<?php
}
endif;

When I customize the wp_list_comments() output, how do I add a class to the admin comments?

Relevant code:

<?php wp_list_comments( array( 'style' => 'ol', 'callback' => 'custom_list_comments' ) ); ?>

---

<?php
if( ! function_exists( 'custom_list_comments' ) ):
function custom_list_comments( $comment, $args, $depth ) {
?>
<li id="comment-<?php comment_ID() ?>">
    <?php echo get_avatar( $comment, 48 ); ?>
    <?php comment_text(); ?>
    <span><?php echo get_comment_author() ?></span>
    <time><?php comment_time(); ?></time>
    <?php comment_reply_link( array_merge( $args, array( 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
    <?php edit_comment_link(); ?>
<?php
}
endif;

• comments

Share Improve this question asked Aug 2, 2019 at 8:23 MatthewMatthew 15155 bronze badges

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 3

One way to add some custom class to a li tag if the comment was posted by an administrator is to replace line

<li id="comment-<?php comment_ID() ?>">

with

<li <?php comment_class(); ?> id="comment-<?php comment_ID() ?>">

This will add support for the default WP comments classes to your comments callback.

Once you do that add in your theme functions.php file the code below it will add class "posted-by-admin" to the li tag classes if the comment author is an administrator.

add_filter( "comment_class", function( $classes, $class, $comment_id, $comment ) {
    if( $comment->user_id > 0 && $user = get_userdata( $comment->user_id ) && user_can( $comment->user_id, "administrator" ) ) {
        $classes[] = "posted-by-admin";
    }
    return $classes; 
}, 10, 4 );

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