wp_get_attachment_image没有工作wordpress来显示博客帖子图片

Question

I am using wordpress and trying to create a blog landing page to show the most recent blog posts. So far so good but I am having difficulties showing the blog image in the image tag. I am able to obtain the postId by using get_the_id function. I was also able to get the date of the post by using the_date function.

However, I cannot get the wp_get_attachment_image function to show the image of the blog post.

Please see my code below.

<?php $query = new WP_Query( 'posts_per_page=5' ); ?> 

<?php while ($query -> have_posts()) : $query -> the_post(); ?>
    <div class="blog">
      <img src="wp_get_attachment_image( get_the_ID() ); ">
      <h3><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h3>
      <p><?php the_date(); ?></p>
      <p><?php the_excerpt(__('(more…)')); ?></p>
    </div>

    <?php
        endwhile;
        wp_reset_postdata();
    ?>

Answer 1

I had to use the following function the_post_thumbnail() and echo the result within an image tag

<img src="<?php echo the_post_thumbnail();?>">

The following code worked.

<?php $query = new WP_Query( 'posts_per_page=5' ); ?> 

<?php while ($query -> have_posts()) : $query -> the_post(); ?>
    <div class="blog">
      <img src="wp_get_attachment_image( get_the_ID() ); ">
      <h3><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h3>
      <p><?php the_date(); ?></p>
      <p><?php the_excerpt(__('(more…)')); ?></p>
    </div>
?>