After doing some more reading I found that I can pass a pageID to have_rows and retrieve fields that way, so I thought I could maybe retrieve an array of all the siblings of a page and just loop through them. However, I can’t find the appropriate way to do this. Am I going about this right way? Is there a better way to implement to this?
<?php
$pageId = array-of-sibling-ids.
?>
<?php
foreach ($pageId as $sibling) {
if( have_rows('single_project_hero', $sibling) ):
while( have_rows('single_project_hero', $sibling) ): the_row();
$image = get_sub_field('single_project_hero_image');
$heading = get_sub_field('single_project_hero_headline');
$teaser = get_sub_field('single_project_hero_teaser');
?>
<?php if ($image): ?>
<div class="singleProject__hero">
<img src="<?php echo $image ?>"/>
<div class="singleProject__heroCopy centered-heading">
<h2 class="title"><?php echo $heading ?></h2>
<p class="copy"><?php echo $teaser ?></p>
</div>
</div>
<?php endif; ?>
<?php endwhile; ?>
<?php endif; ?>
