这里有点像新手。我不能从get_field得到任何结果。下面是我的测试页面:
http://23.21.199.240/test
我可以使用FOR循环检索中继器字段数据，但是特殊的ACF get_field函数没有按照我的期望进行操作。(这看起来很简单，所以如果我犯了一个完全愚蠢的错误，我也不会感到惊讶。)
任何帮助都将非常感激!
<?php
/*
Template Name: test
*/
?>
<?php get_header(); ?>
<?php query_posts('category_name=worldwise&posts_per_page=3'); ?>
<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
id: <?php the_ID(); ?><br />
<!--let's try to display all the topics (an ACF repeater field) for this post....-->
<?php if(get_field('topic')): // if there are topics, get all their data in an array ?>
<?php
$topic_list_1 = ''; // set up an empty topic list
while(has_sub_field('topic')): // for every topic
$topic_title_1 = get_sub_field('topic_title'); // get the title
$topic_list_1 .= '<li>' . $topic_title_1 . '</li>'; // and add it to the topic list
endwhile; // no more topics, move on
?>
<p><strong>The FOR loop produced these topics:</strong></p>
<ul><?php echo $topic_list_1; ?></ul>
<?php else: ?>
<p style="color:red">GET_FIELD did not find any topics</p>
<?php endif; ?>
<!--or, let's try displaying those topics another way....-->
<?php
$vid_id = $post->ID;
$vid_custom = get_post_custom($vid_id);
?>
<?php if($vid_custom['topic'][0] != null): ?>
<?php
$topic_list_2 = '';
for($r=0;$r<$vid_custom['topic'][0];$r++):
$topic_title_2 = $vid_custom[topic_.$r._topic_title][0];
$topic_list_2 .= '<li>' . $topic_title_2 . '</li>';
endfor;
?>
<p><strong>The FOR loop produced these topics:</strong></p>
<ul><?php echo $topic_list_2; ?></ul>
<?php else: ?>
<p style="color:red">The FOR loop did not find any topics</p>
<?php endif; ?>
<br />
<?php endwhile; else: ?>
<p>Sorry, no posts or pages matched your criteria.</p>
<?php endif; ?>
我不喜欢使用get_sub_field方法，因为当您嵌套重复器字段时，它会变得有点复杂。
在我看来，这是获得你想要做的事情的最简单的方法:
<ul>
<?php foreach (get_field('topic') as $row) :?>
<li><?php print $row['topic_title'] ?></li>
<?php endforeach; ?>
</ul>