我正在WordPress中使用ACF。
我有一个名为Projects的自定义帖子类型。在其中，用户可以选择通过ACF中继器字段上传2特色图像。
现在，在主页上，我为用户提供了从项目发布类型中选择8发布对象的的选项。
我需要能够循环浏览这个主页中继器字段，并且从每个"项目"帖子对象中提取两个特色图像和项目标题。
ACF最近贬低了repeater_field函数，我想这让我很反感。
但是，到目前为止，我一直在努力与之合作：
<!-- check for repeater field -->
<?php if(get_field('featured-projects')): ?>
<?php while(has_sub_field('featured-projects')): ?>
<!-- get project post objects -->
<?php $projects = get_sub_field('project'); ?>
<!-- without the loop below, this echo's all 8 projects ID's -->
<?php echo($projects->ID); ?><br />
<!-- when added, only pulls the first project. And limits the echo above to the first ID -->
<?php $loop = new WP_Query( array(
'post_type' => 'projects',
'p' => $projects->ID
) ); ?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
<?php endwhile; ?>
<?php endwhile; ?>
<?php endif; ?>
我试图对代码进行注释，但如果有什么不合理的地方，请告诉我。
以下是我的操作方法，尽管我意识到这与您的方法不同。我在代码注释中包含了解释：
<?php $featured_projects = get_field('featured-projects'); //Set $featured_projects to equal the array of projects from the home page repeater. ?>
<!-- check for repeater field -->
<?php if($featured_projects): ?>
<?php foreach($featured_projects as $featured_project) : //Loop through each featured project ?>
<?php $project_id = $featured_project['project']->ID; //Get the id for the current featured project ?>
<?php $project_title = get_the_title($project_id); //set $title to be the title of the project ?>
<?php project_featured_images = get_field('name-of-featured-repeater-field-here', $project_id); //get the repeater field of the featured images from the project post ?>
<h1 class='title'><?php echo $project_title; //print the title ?></h1>
<?php if($project_featured_images[0]): //check if you have a 1st image (size large) ?>
<img class='featured-image-one' src="<?php echo $project_featured_images[0]['name-of-the-featured-image-sub-field-here']['sizes']['large']; //print the url to the 1st image; ?>"/>
<?php endif; ?>
<?php if($project_featured_images[1]): //check if you have a 2nd image ?>
<img class='featured-image-two' src="<?php echo $project_featured_images[1]['name-of-the-featured-image-sub-field-here']['sizes']['large']; //print the url to the 2nd image (size large); ?>"/>
<?php endif; ?>
<?php endforeach; ?>
<?php endif; ?>
请确保填写项目特色图像转发器字段的名称，以及该转发器中图像子字段的名称。这显然是一个比API版本更标准的基于PHP的解决方案。我通常根据Elliot Candon（ACF开发人员）的建议使用这种方法。
您还可以通过将"大"更改为另一个标准大小或添加自定义大小来获得特色图像的不同图像大小。