리스트에서 댓글의 답글이 출력이 안됨~

<?php
    // 댓글 조회
    $sql = "SELECT * FROM {$g5['write_prefix']}{$bo_table} 
            WHERE wr_parent = '{$list[$i]['wr_id']}' AND wr_is_comment = 1 
            ORDER BY wr_comment_reply ASC, wr_datetime ASC"; // wr_comment_reply로 정렬
    $comments = sql_query($sql);

    while ($comment = sql_fetch_array($comments)) {
        $comment_content = $comment['wr_content'];
        $comment_content = applyEmoticons($comment_content, $emoticons); // 이모티콘 적용

        if ($comment['wr_option'] == 'secret' && !$is_member) {
            $comment_content = '<i class="fa fa-lock" aria-hidden="true"></i> 비밀글입니다.';
        }

        // wr_comment_reply 값이 있으면 답글로 간주
        $is_reply = !empty($comment['wr_comment_reply']); // wr_comment_reply 값이 있으면 true
        $cmt_depth = $is_reply ? strlen($comment['wr_comment_reply']) * 20 : 0; // 들여쓰기 깊이 계산

        // 답글의 깊이에 따라 들여쓰기 적용
        $cmt_depth = $is_reply ? (strlen($comment['wr_comment_reply']) * 20) : 0;
    ?>
    <div class="comment" style="margin-left: <?php echo $cmt_depth; ?>px;">
        <div class="comment-header">
            <span class="comment-author"><?php echo get_text($comment['wr_name']); ?></span>
            <span class="comment-date"><?php echo $comment['wr_datetime']; ?></span>
        </div>
        <div class="comment-content">
        
            <?php echo $comment_content; ?>
        </div>
    </div>