我想在我的单曲中找到一条路。php列出所有用户（显示名称）haven\'t 对当前帖子发表了评论。

我有一段代码，列出了have 已发表评论。。。

/**
 * Retrieve a list of comment authors\' names.
 *
 * @param  int    $id  Optional. Post ID.
 * @param  string $sep Optional. List separator.
 * @return string|null Names list.
 */
function get_comment_authors_list( $id = 0, $sep = \', \' ) {
    $post_id = $id ? $id : get_the_ID();
    if ( $post_id ) {
        $comments = get_comments( array(
            \'post_id\' => $post_id,
            \'status\'  => \'approve\',
            \'type\'    => \'comment\',
        ) );

        $names = array();
        foreach ( $comments as $comment ) {
            $name = $comment->comment_author;
            if ( $comment->user_id ) {
                $user = get_userdata( $comment->user_id );
                $name = $user ? $user->first_name : $name;
            }

            $arr = explode( \' \', trim( $name ) );
            if ( ! empty( $arr[0] ) && ! in_array( $arr[0], $names ) ) {
                $names[] = $arr[0];
            }
        }
        unset( $comments );

        $sep = $sep ? $sep : \', \';
        return implode( $sep, $names );
    }
}

/**
 * Display a list of comment authors\' names.
 *
 * @param  int    $id  Optional. Post ID.
 * @param  string $sep Optional. List separator.
 * @return null
 */
function the_comment_authors_list( $id = 0, $sep = \', \' ) {
    echo get_comment_authors_list( $id, $sep );
}

/*
 * Available parameters for the Shortcode:
 *   int    post_id  Optional. Post ID.
 *   string list_sep Optional. List separator.
 *
 * Usage examples:
 *   [comment_authors_list /]
 *   [comment_authors_list post_id="1" list_sep=" · " /]
 */
add_shortcode( \'comment_authors_list\', \'comment_authors_list_shortcode\' );

/**
 * Shortcode callback function.
 *
 * @see get_comment_authors_list()
 * @return string|null Names list.
 */
function comment_authors_list_shortcode( $atts = array() ) {
    $atts = shortcode_atts( array(
        \'post_id\'  => 0,
        \'list_sep\' => \'\',
    ), $atts );

    return get_comment_authors_list( $atts[\'post_id\'], $atts[\'list_sep\'] );
}