计算sub_field中有多少行 [英] Count how many rows are in sub_field

问题描述

我正在使用高级自定义字段中继器来加载一些sub_fields，您可以在下面的代码中看到这些内容：

I am using advanced custom field repeater to load some sub_fields which you can see in the below code:

<?php
    if( get_field('who_made_it') ): ?>
    <div id="role-wrapper">
        <?php while( has_sub_field('who_made_it') ): ?>
            <div class="role-item">
                <?php the_sub_field('job_role'); ?>
                <?php the_sub_field('description'); ?>
            </div>
        <?php endwhile; ?>
    </div>
<?php endif; ?>

我想计算多少 .row-item 存在，然后将其作为类打印在容器上＃role-wrapper 。

I would like to count how many .row-item's there are and then print that number as a class on the container #role-wrapper .

因此，作为其外观的HTML演示：

So as a HTML demo of how it would look:

<div id="role-wrapper" class"roleitems-3">
    <div class="role-item">
        content in here
    </div>
    <div class="role-item">
        content in here
    </div>
    <div class="role-item">
        content in here
    </div>
</div>

推荐答案

由文档， get_field（）返回一个数组（）子字段。结果，您可以执行一个简单的 count（） ：

As specified by the docs, get_field() returns an array() of sub fields in this case. As a result, you can do a simple count():

<div id="role-wrapper" class"roleitems-<?php echo count( get_field('who_made_it') ); ?>">

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