아래 처럼 해보시겠어요?

<?php if($board->isAdmin()):?>
	<div class="kboard-attr-row">
		<label class="attr-name" for="kboard_option_advertising">광고</label>
		<div class="attr-value">
			<label>
				<!-- 아래 히든(hidden) 필드의 값은 체크박스가 체크되지 않았을 때 저장할 기본값입니다. -->
				<input type="hidden" name="kboard_option_advertising" value="">
				<input type="checkbox" name="kboard_option_advertising" value="1"<?php if($content->option->advertising):?> checked<?php endif?>>
				광고
			</label>
		</div>
	</div>
<?php endif?>

고맙습니다.

https://imgur.com/a/PmLLhcl
광고 체크 버튼을 공지사항 체크 버튼 같이 어드민(관리자)만 보여주려면 어떻게 해야 하나요?

list.php 파일 쪽에 문제가 있는 듯합니다.

아래처럼 적용해보시겠어요?

<!-- 리스트 시작 -->
<div class="kboard-list">
	<table>
		<thead>
			<tr>
				<td class="kboard-list-uid"><?php echo __('Number', 'kboard')?></td>
				<td class="kboard-list-title"><?php echo __('Title', 'kboard')?></td>
				<td class="kboard-list-user"><?php echo __('Author', 'kboard')?></td>
				<td class="kboard-list-date"><?php echo __('Date', 'kboard')?></td>
				<td class="kboard-list-vote"><?php echo __('Votes', 'kboard')?></td>
				<td class="kboard-list-view"><?php echo __('Views', 'kboard')?></td>
			</tr>
		</thead>
		<tbody>
			<?php while($content = $list->hasNextNotice()):?>
			<tr class="kboard-list-notice<?php if($content->uid == kboard_uid()):?> kboard-list-selected<?php endif?>">
				<td class="kboard-list-uid"><?php echo __('Notice', 'kboard')?></td>
				<td class="kboard-list-title">
					<a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
						<div class="kboard-default-cut-strings">
							<?php if($content->isNew()):?><span class="kboard-default-new-notify">New</span><?php endif?>
							<?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
							<?php echo $content->title?>
							<span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
						</div>
					</a>
					<div class="kboard-mobile-contents">
						<span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
						<span class="contents-separator kboard-date">|</span>
						<span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
						<span class="contents-separator kboard-vote">|</span>
						<span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
						<span class="contents-separator kboard-view">|</span>
						<span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
					</div>
				</td>
				<td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
				<td class="kboard-list-date"><?php echo $content->getDate()?></td>
				<td class="kboard-list-vote"><?php echo $content->vote?></td>
				<td class="kboard-list-view"><?php echo $content->view?></td>
			</tr>
			<?php endwhile?>
			
			<?php
			$advertising_list = new KBContentList($board->id);
			$advertising_list->addSearchOption('advertising', '1');
			$advertising_list->getList();
			
			while($content = $advertising_list->hasNext()):?>
			<tr class="kboard-list-notice<?php if($content->uid == kboard_uid()):?> kboard-list-selected<?php endif?>">
				<td class="kboard-list-uid">광고</td>
				<td class="kboard-list-title">
					<a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
						<div class="kboard-default-cut-strings">
							<?php if($content->isNew()):?><span class="kboard-default-new-notify">New</span><?php endif?>
							<?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
							<?php echo $content->title?>
							<span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
						</div>
					</a>
					<div class="kboard-mobile-contents">
						<span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
						<span class="contents-separator kboard-date">|</span>
						<span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
						<span class="contents-separator kboard-vote">|</span>
						<span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
						<span class="contents-separator kboard-view">|</span>
						<span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
					</div>
				</td>
				<td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
				<td class="kboard-list-date"><?php echo $content->getDate()?></td>
				<td class="kboard-list-vote"><?php echo $content->vote?></td>
				<td class="kboard-list-view"><?php echo $content->view?></td>
			</tr>
			<?php endwhile?>
			
			<?php while($content = $list->hasNext()):?>
			<tr class="<?php if($content->uid == kboard_uid()):?>kboard-list-selected<?php endif?>">
				<td class="kboard-list-uid"><?php echo $list->index()?></td>
				<td class="kboard-list-title">
					<a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
						<div class="kboard-default-cut-strings">
							<?php if($content->isNew()):?><span class="kboard-default-new-notify">New</span><?php endif?>
							<?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
							<?php echo $content->title?>
							<span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
						</div>
					</a>
					<div class="kboard-mobile-contents">
						<span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
						<span class="contents-separator kboard-date">|</span>
						<span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
						<span class="contents-separator kboard-vote">|</span>
						<span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
						<span class="contents-separator kboard-view">|</span>
						<span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
					</div>
				</td>
				<td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
				<td class="kboard-list-date"><?php echo $content->getDate()?></td>
				<td class="kboard-list-vote"><?php echo $content->vote?></td>
				<td class="kboard-list-view"><?php echo $content->view?></td>
			</tr>
			<?php $boardBuilder->builderReply($content->uid)?>
			<?php endwhile?>
		</tbody>
	</table>
</div>
<!-- 리스트 끝 -->

추가로 코드를 올리실 때 에디터의 "코드 스니펫 삽입" 기능으로 삽입해주세요.

그렇지 않으면 코드가 이상해져서 에러 나는 코드로 바뀌거나,

질의응답 시 의사소통에 오해와 문제가 생길 수도 있기 때문입니다.

고맙습니다.

일반회원 글쓰기로 해보니 일반 게시글 목록에 안나오고, 광고로 나옵니다ㅠㅠ

광고 체크 안하였습니다.

<div class="kboard-attr-row">
            <div class="attr-name"><?php echo __('Options', 'kboard')?></div>
            <div class="attr-value">
                <label class="attr-value-option"><input type="checkbox" name="secret" value="true" onchange="kboard_toggle_password_field(this)"<?php if($content->secret):?> checked<?php endif?>> <?php echo __('Secret', 'kboard')?></label>
                <?php if($board->isAdmin()):?>
                <label class="attr-value-option"><input type="checkbox" name="notice" value="true"<?php if($content->notice):?> checked<?php endif?>> <?php echo __('Notice', 'kboard')?></label>
                <?php endif?>
            </div>
        </div>
        
    
        
        <!--광고 시작-->
        <div class="kboard-attr-row">
    <label class="attr-name" for="kboard_option_advertising">광고</label>
    <div class="attr-value">
        <label>
            <!-- 아래 히든(hidden) 필드의 값은 체크박스가 체크되지 않았을 때 저장할 기본값입니다. -->
            <input type="hidden" name="kboard_option_advertising" value="">
            <input type="checkbox" name="kboard_option_advertising" value="1"<?php if($content->option->advertising):?> checked<?php endif?>>
            광고
        </label>
    </div>
</div>
<!--광고 종료-->

        
        <?php if($board->use_category):?>
            <?php if($board->initCategory1()):?>
            <div class="kboard-attr-row">
                <label class="attr-name" for="kboard-select-category1"><?php echo __('Category', 'kboard')?>1</label>
                <div class="attr-value">
                    <select id="kboard-select-category1" name="category1">
                        <option value=""><?php echo __('Category', 'kboard')?> <?php echo __('Select', 'kboard')?></option>
                        <?php while($board->hasNextCategory()):?>
                        <option value="<?php echo $board->currentCategory()?>"<?php if($content->category1 == $board->currentCategory()):?> selected<?php endif?>><?php echo $board->currentCategory()?></option>
                        <?php endwhile?>
                    </select>
                </div>
            </div>
            <?php endif?>

<!-- 리스트 시작 -->
    <div class="kboard-list">
        <table>
            <thead>
                <tr>
                    <td class="kboard-list-uid"><?php echo __('Number', 'kboard')?></td>
                    <td class="kboard-list-title"><?php echo __('Title', 'kboard')?></td>
                    <td class="kboard-list-user"><?php echo __('Author', 'kboard')?></td>
                    <td class="kboard-list-date"><?php echo __('Date', 'kboard')?></td>
                    <td class="kboard-list-vote"><?php echo __('Votes', 'kboard')?></td>
                    <td class="kboard-list-view"><?php echo __('Views', 'kboard')?></td>
                </tr>
            </thead>
            <tbody>
                <?php while($content = $list->hasNextNotice()):?>
                <tr class="kboard-list-notice<?php if($content->uid == kboard_uid()):?> kboard-list-selected<?php endif?>">
                    <td class="kboard-list-uid">공지</td>

                    <td class="kboard-list-title">
                        <a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
                            <div class="kboard-default-cut-strings">
                                <?php if($content->isNew()):?><span class="kboard-default-new-notify">N</span><?php endif?>
                                <?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
                                <?php echo $content->title?>
                                
                                <?php $media = new KBContentMedia();
                                $media->content_uid = $content->uid;
                                if($media->getList()){
                                    $src = "{$skin_path}/images/icon-attach.png";
                                    echo '<img src="' . $src . '" alt="이미지첨부">';
                                    }
                                ?>                            
                                
                                <span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
                            </div>
                        </a>
                        <div class="kboard-mobile-contents">
                            <span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
                            <span class="contents-separator kboard-date">|</span>
                            <span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
                            <span class="contents-separator kboard-vote">|</span>
                            <span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
                            <span class="contents-separator kboard-view">|</span>
                            <span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
                        </div>
                    </td>
                    <td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
                    <td class="kboard-list-date"><?php echo $content->getDate()?></td>
                    <td class="kboard-list-vote"><?php echo $content->vote?></td>
                    <td class="kboard-list-view"><?php echo $content->view?></td>
                </tr>
                
                
                
                
                
                               
<!-- 광고시작 -->
<?php
$advertising_list = new KBContentList($board->id);
$advertising_list->addSearchOption('advertising', '1');
$advertising_list->getList();

while($content = $advertising_list->hasNext()):?>
<tr class="kboard-list-notice<?php if($content->uid == kboard_uid()):?> kboard-list-selected<?php endif?>">
    <td class="kboard-list-uid">광고</td>
    <td class="kboard-list-title">
        <a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
            <div class="kboard-default-cut-strings">
                <?php if($content->isNew()):?><span class="kboard-default-new-notify">N</span><?php endif?>
                <?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
                <?php echo $content->title?>
                <span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
            </div>
        </a>
        <div class="kboard-mobile-contents">
            <span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
            <span class="contents-separator kboard-date">|</span>
            <span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
            <span class="contents-separator kboard-vote">|</span>
            <span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
            <span class="contents-separator kboard-view">|</span>
            <span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
        </div>
    </td>
    <td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
    <td class="kboard-list-date"><?php echo $content->getDate()?></td>
    <td class="kboard-list-vote"><?php echo $content->vote?></td>
    <td class="kboard-list-view"><?php echo $content->view?></td>
</tr>
<?php endwhile?>

<!--광고종료-->

                
                
                
                
                <?php endwhile?>
                <?php while($content = $list->hasNext()):?>
                <tr class="<?php if($content->uid == kboard_uid()):?>kboard-list-selected<?php endif?>">
                    <td class="kboard-list-uid"><?php echo $list->index()?></td>
                    <td class="kboard-list-title">
                        <a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
                            <div class="kboard-default-cut-strings">
                                <?php if($content->isNew()):?><span class="kboard-default-new-notify">N</span><?php endif?>
                                
                                <?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
                                
                                <?php $media = new KBContentMedia();
                                $media->content_uid = $content->uid;
                                if($media->getList()){
                                    $src = "{$skin_path}/images/icon-attach.png";
                                    echo '<img src="' . $src . '" alt="이미지첨부">';
                                    }
                                ?>
                                
                                <?php echo $content->title?>
                                
                                
                                
                                <span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
                            </div>
                        </a>
                        <div class="kboard-mobile-contents">             
                            <span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
                            <span class="contents-separator kboard-date">|</span>
                            <span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
                            <span class="contents-separator kboard-vote">|</span>
                            <span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
                            <span class="contents-separator kboard-view">|</span>
                            <span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
                        </div>
                    </td>
                    <td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
                    <td class="kboard-list-date"><?php echo $content->getDate()?></td>
                    <td class="kboard-list-vote"><?php echo $content->vote?></td>
                    <td class="kboard-list-view"><?php echo $content->view?></td>
                </tr>
                <?php $boardBuilder->builderReply($content->uid)?>
                <?php endwhile?>
            </tbody>
        </table>
    </div>
    <!-- 리스트 끝 -->

https://imgur.com/a/atF3QoC
2. 3번째로 새로운 문제가 있는데요, 공지를 작성하면 광고까지 따라서 나옵니다.
'비밀글과 공지사항 등록' 이란 공지를 새로 등록했는데
바로 아래 광고가 자동으로 생겨납니다ㅠㅠ

광고글 혹은 공지사항 둘 중 하나만 체크를 해주셔야 할 듯합니다.

광고글은 공지사항이 아니거든요.

아니면 스킨 파일에 코드 입력을 잘못해준 것 같습니다.

비회원으로 테스트할 수 있는 페이지 주소 알려주시겠어요?

고맙습니다.

광고글 작성과 등록이 잘 되는데요.

1. 공지사항 개수만큼 똑같이 나옵니다ㅠㅠ
공지사항을 2개인 상태에서 광고글 1개 작성했는데,
1개의 광고글이 공지사항이랑 똑같이 2개가 나왔어요.

2. 공지사항이 몇 개이든 공지사항 바로 아래에 나와야 하는데, 
공지사항
광고
공지사항
광고
.
.
.
공지사항 사이사이에 나옵니다 ㅠㅠ

FTP로 접속해서 스킨 파일을 수정해주세요.

저희는 default 스킨에서 테스트해봤습니다.

1. /wp-content/plugins/kboard/skin/사용중인스킨/editor.php 파일에 아래 코드를 추가해주세요.

<div class="kboard-attr-row">
	<label class="attr-name" for="kboard_option_advertising">광고</label>
	<div class="attr-value">
		<label>
			<!-- 아래 히든(hidden) 필드의 값은 체크박스가 체크되지 않았을 때 저장할 기본값입니다. -->
			<input type="hidden" name="kboard_option_advertising" value="">
			<input type="checkbox" name="kboard_option_advertising" value="1"<?php if($content->option->advertising):?> checked<?php endif?>>
			광고
		</label>
	</div>
</div>

2. /wp-content/plugins/kboard/skin/사용중인스킨/list.php 파일에 아래 코드를 추가해주세요.

리스트에서 공지사항과 일반 글 출력 사이에 코드를 넣어주시면 되겠습니다.

<?php
$advertising_list = new KBContentList($board->id);
$advertising_list->addSearchOption('advertising', '1');
$advertising_list->getList();

while($content = $advertising_list->hasNext()):?>
<tr class="kboard-list-notice<?php if($content->uid == kboard_uid()):?> kboard-list-selected<?php endif?>">
	<td class="kboard-list-uid">광고</td>
	<td class="kboard-list-title">
		<a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>">
			<div class="kboard-default-cut-strings">
				<?php if($content->isNew()):?><span class="kboard-default-new-notify">New</span><?php endif?>
				<?php if($content->secret):?><img src="<?php echo $skin_path?>/images/icon-lock.png" alt="<?php echo __('Secret', 'kboard')?>"><?php endif?>
				<?php echo $content->title?>
				<span class="kboard-comments-count"><?php echo $content->getCommentsCount()?></span>
			</div>
		</a>
		<div class="kboard-mobile-contents">
			<span class="contents-item kboard-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></span>
			<span class="contents-separator kboard-date">|</span>
			<span class="contents-item kboard-date"><?php echo $content->getDate()?></span>
			<span class="contents-separator kboard-vote">|</span>
			<span class="contents-item kboard-vote"><?php echo __('Votes', 'kboard')?> <?php echo $content->vote?></span>
			<span class="contents-separator kboard-view">|</span>
			<span class="contents-item kboard-view"><?php echo __('Views', 'kboard')?> <?php echo $content->view?></span>
		</div>
	</td>
	<td class="kboard-list-user"><?php echo apply_filters('kboard_user_display', $content->member_display, $content->member_uid, $content->member_display, 'kboard', $boardBuilder)?></td>
	<td class="kboard-list-date"><?php echo $content->getDate()?></td>
	<td class="kboard-list-vote"><?php echo $content->vote?></td>
	<td class="kboard-list-view"><?php echo $content->view?></td>
</tr>
<?php endwhile?>

3. 테마의 functions.php 파일에 아래 코드를 추가해주세요.

아래 코드가 추가되어야 일반 글 리스트에서 광고로 선택된 게시글이 나오지 않습니다.

add_filter('kboard_list_where', 'my_where_exclusion_advertising', 10, 3);
function my_where_exclusion_advertising($where, $board_id, $content_list){
	global $wpdb;
	
	if(!$content_list->search_option){
		$where .= " AND `{$wpdb->prefix}kboard_board_content`.`uid` NOT IN (SELECT `content_uid` FROM `{$wpdb->prefix}kboard_board_option` WHERE `option_key`='advertising')";
	}
	
	return $where;
}

테스트 하는데 시간이 많이 걸렸네요 ㅎㅎ;;

고맙습니다.