我为特定页面创建了4个自定义字段。

Field type:

<发布对象（我从帖子中抓取缩略图和标题）

Field names:

<现在，我在如下列表中显示内容：

<ul>
    <li>
        <?php 
            $featuredContentPostID = get_field(\'featured_content_1\')->ID;
            $selectedFeaturedContent = get_post( $featuredContentPostID );
        ?>
        <a href="<?php echo esc_url( get_permalink($featuredContentPostID) ); ?>">
            <?php echo get_the_post_thumbnail( $featuredContentPostID, \'thumbnail\' ); ?>
            <span><?php echo $selectedFeaturedContent->post_title ?></span>
        </a>
    </li>
    <li>
        <?php 
            $featuredContentPostID = get_field(\'featured_content_2\')->ID;
            $selectedFeaturedContent = get_post( $featuredContentPostID );
        ?>
        <a href="<?php echo esc_url( get_permalink($featuredContentPostID) ); ?>">
            <?php echo get_the_post_thumbnail( $featuredContentPostID, \'thumbnail\' ); ?>
            <span><?php echo $selectedFeaturedContent->post_title ?></span>
        </a>
    </li>
</ul>

如何在字段中循环并显示内容，而不必对其进行简化谢谢

UPDATE

我在自定义字段集中添加了一个新字段（选择框）：

如何检索该选择字段（“升级内容”）的值？

UPDATE 2

推广内容的解决方案；向LI添加“活动”类：

<?php
    for ($i=1; $i<=4; $i++) {
        $fieldName = \'featured_content_\' . $i;
        $featuredContentPostID = get_field($fieldName)->ID;
        $selectedFeaturedContent = get_post( $featuredContentPostID );
        $promoted_content = get_field(\'promoted\');
        ?>
        <li class="<?php if($promoted_content == $fieldName) { echo \'active\'; }?>">
                <a href="<?php echo esc_url( get_permalink($featuredContentPostID) ); ?>">
                        <?php echo get_the_post_thumbnail( $featuredContentPostID, \'thumbnail\' ); ?>
                        <span><?php echo $selectedFeaturedContent->post_title ?></span>
                </a>
        </li>
        <?php
    }
?>

<?php
    for ($i=1; $i<=4; $i++) {
            $fieldName = \'featured_content_\' . $i;
            $featuredContentPostID = get_field($fieldName)->ID;
            $selectedFeaturedContent = get_post( $featuredContentPostID );
            ?>
            <li>
                    <a href="<?php echo esc_url( get_permalink($featuredContentPostID) ); ?>">
                            <?php echo get_the_post_thumbnail( $featuredContentPostID, \'thumbnail\' ); ?>
                            <span><?php echo $selectedFeaturedContent->post_title ?></span>
                    </a>
            </li>
            <?php
    }
?>