최신글 랜덤 출력방법

<?php
if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
include_once(G5_LIB_PATH.'/thumbnail.lib.php');

// add_stylesheet('css 구문', 출력순서); 숫자가 작을 수록 먼저 출력됨
add_stylesheet('<link rel="stylesheet" href="'.$latest_skin_url.'/style.css">', 0);
$thumb_width = 196;
$thumb_height = 145;
?>

<div class="lt_slider_li">
    <h2><a href="<?php echo G5_BBS_URL ?>/board.php?bo_table=<?php echo $bo_table ?>" </a>진행중인 컨텐츠</h2>
    <ul>
    <?php 
        for ($i=0; $i<count($list); $i++) {
            $thumb = get_list_thumbnail($bo_table, $list[$i]['wr_id'], $thumb_width, $thumb_height, false, true);
        
            if($thumb['src']) {
                $img = $thumb['src'];
            } else {
                $img = G5_THEME_IMG_URL.'/no_img.png';
                $thumb['alt'] = '이미지가 없습니다.';
            }
            $img_content = '<img src="'.$img.'" alt="'.$thumb['alt'].'" >';
    ?>
        <li>
            <a href="<?php echo $list[$i]['href'] ?>" class="lt_img"><?php echo $img_content; ?></a>
            <div class="lt_cnt">
                <?php
                if ($list[$i]['icon_secret']) echo "<i class=\"fa fa-lock\" aria-hidden=\"true\"></i> ";
                echo "<a href=\"".$list[$i]['href']."\" class=\"lt_tit\">";
                if ($list[$i]['is_notice'])
                    echo "<strong>".$list[$i]['subject']."</strong>";
                else
                    echo $list[$i]['subject'];
                if ($list[$i]['icon_new']) echo " <span class=\"new_icon\">N</span>";
                if ($list[$i]['icon_file']) echo " <i class=\"fa fa-download\" aria-hidden=\"true\"></i>" ;
                if ($list[$i]['icon_link']) echo " <i class=\"fa fa-link\" aria-hidden=\"true\"></i>" ;
                if ($list[$i]['icon_hot']) echo " <i class=\"fa fa-heart\" aria-hidden=\"true\"></i>";
    
                echo "</a>";
    
                ?>
                <div class="lt_info">
                    <?php echo $list[$i]['name'] ?>
                    <span class="lt_date"><i class="far fa-clock"></i> <?php echo $list[$i]['datetime2'] ?></span>
                </div>
            </div>
        </li>
    <?php } ?>
    <?php if (count($list) == 0) { //게시물이 없을 때 ?>
    <li class="empty_li">게시물이 없습니다.</li>
    <?php } ?>
    </ul>
    <a href="<?php echo G5_BBS_URL ?>/board.php?bo_table=<?php echo $bo_table ?>" class="lt_more"><i class="fas fa-ellipsis-v"></i><span class="sound_only"><?php echo $bo_subject ?> 더보기</span></a>
</div>