<?php
$featured_posts = get_field('director');
if( $featured_posts ): ?>
<ul>
<?php foreach( $featured_posts as $featured_post ):?>
<div class="movies-series-director">
<a class="movies-series-director-thumbnails" href="<?php echo get_page_link($featured_post->ID);?>"> <img src="<?php echo get_the_post_thumbnail_url($featured_post->ID, 'thumbnail');?>"></a>
<div class="movies-series-director-title">
<h4> <a href="<?php echo get_page_link($featured_post->ID);?>"> <?php echo $featured_post->post_title;?> </a> </h4>
<b>Director</b>
</div>
</div>
<?php endforeach; ?>
</ul>
<?php endif; ?>
伙計們如何輸出這樣的。
如果有縮略圖，則發布縮略圖，否則如果沒有縮略圖，則列印此影像（無影像）
uj5u.com熱心網友回復：
您要檢查縮略圖是否為空，如果沒有縮略圖，則顯示默認影像。
所以你使用get_the_post_thumbnail_url()并檢查它是否為空。
if ( empty(get_the_post_thumbnail_url( $featured_post->ID)) ):
echo 'https://your-default-image_url.jpg';
else:
echo get_the_post_thumbnail_url( $featured_post->ID, 'thumbnail' );
endif;
如果您希望它更具可讀性，您的代碼可以如下所示：
<ul>
<?php foreach( $featured_posts as $featured_post ):?>
<?php $featured_image = get_the_post_thumbnail_url($featured_post->ID, 'thumbnail') ?: 'https://your-default-image_url.jpg'; ?>
<div class="movies-series-director">
<a class="movies-series-director-thumbnails" href="<?php echo get_page_link($featured_post->ID);?>"> <img src="<?php echo $featured_image;?>"></a>
<div class="movies-series-director-title">
<h4> <a href="<?php echo get_page_link($featured_post->ID);?>"> <?php echo $featured_post->post_title;?> </a> </h4>
<b>Director</b>
</div>
</div>
<?php endforeach; ?>
</ul>
uj5u.com熱心網友回復：
這是您的作業代碼：
<?php
$featured_posts = get_field('director');
if( $featured_posts ): ?>
<ul>
<?php foreach( $featured_posts as $featured_post ):?>
<div class="movies-series-director">
<a class="movies-series-director-thumbnails" href="<?php echo get_page_link($featured_post->ID);?>"> <img src="<?php echo get_the_post_thumbnail_url($featured_post->ID, 'thumbnail');?>"></a>
<div class="movies-series-director-title">
<h4> <a href="<?php echo get_page_link($featured_post->ID);?>"> <?php echo $featured_post->post_title;?> </a> </h4>
<b>Director</b>
</div>
</div>
<?php endforeach; ?>
</ul>
<?php else: ?>
.... here your code for "else"
<?php endif; ?>
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