[英]wordpress get_the_post_thumbnail() doesn't show anything
I'm creating my first wordpress theme, I can't figure out why the post thumbnails aren't showing. 我正在创建我的第一个wordpress主题,我不知道为什么未显示帖子缩略图。 it just does nothing(no errors).
它什么都不做(没有错误)。 Here is my code:
这是我的代码:
<?php
$args = array( 'posts_per_page' => 3, 'category' => 6);
$postslist = get_posts( $args );
foreach ( $postslist as $post ) :
setup_postdata( $post );
?>
<div class="col-xs-12 col-sm-4">
<h4><?php the_title(); ?></h4>
<?php get_the_post_thumbnail('small'); ?>
<p><?php the_excerpt(); ?></p>
</div>
<?php
endforeach;
wp_reset_postdata();
?>
I'm using HTML5Blank Theme. 我正在使用HTML5Blank主题。 And it supports thumbnails.
它支持缩略图。 this is the code for it in my functions.php file:
这是我的functions.php文件中的代码:
add_theme_support('post-thumbnails');
add_image_size('large', 700, '', true);
add_image_size('medium', 250, '', true);
add_image_size('small', 120, '', true);
add_image_size('custom-size', 700, 200, true);
我认为这是一个小的输入错误:samll-> small
You need to echo it like this echo get_the_post_thumbnail('small');
您需要像这样
echo get_the_post_thumbnail('small');
它: echo get_the_post_thumbnail('small');
get_
functions store the data, they don't actually return it which is why you have to echo. get_
函数存储数据,但实际上并没有返回数据,这就是您必须回显的原因。 They are useful in many cases like you could store it in a variable like $thumb-small = get_the_post_thumbnail('small');
它们在许多情况下很有用,例如您可以将其存储在
$thumb-small = get_the_post_thumbnail('small');
这样的变量中$thumb-small = get_the_post_thumbnail('small');
and reuse it throughout the page. 并在整个页面中重复使用。
the the_post_thumbnail function also used for get post image you can also do by this way. the_post_thumbnail函数也用于获取帖子图像,您也可以通过这种方式进行操作。
<?php
if ( has_post_thumbnail() ) {
the_post_thumbnail('small');
}
?>
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