Get WordPress Featured Image “alt”

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I’m trying to get a page’s featured image alt and echo it as paragraph text but my code doesn’t seem to be working.

I’m currently able to echo the image and it’s working perfectly.

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Here’s the code I’m using: 

    <?php
    get_header(); ?>
      </div>
    <?php /* The loop */ ?>
    <?php while ( have_posts() ) : the_post(); ?>
    <div class="header-image">

    <?php echo get_the_post_thumbnail($page->ID, 'full'); ?> 
    
    <?php $alt = get_post_meta( $attachment_img->ID, '_wp_attachment_image_alt', true ); ?>
    
    <p><?php echo $alt; ?></p>
    
    </div>
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3 comments

  1. Check if you get correct thumbnail id.
    For me this code works perfect:

    $thumbnail_id = get_post_thumbnail_id( $post->ID );
$alt = get_post_meta($thumbnail_id, '_wp_attachment_image_alt', true);

  2. Here’s a solution:

      $thumbnail_id    = get_post_thumbnail_id($post->ID);
  $thumbnail_image = get_posts(array('p' => $thumbnail_id, 'post_type' => 'attachment'));

  if ($thumbnail_image && isset($thumbnail_image[0])) {
    echo '<span>'.$thumbnail_image[0]->post_excerpt.'</span>';
  }

    Or you can use your code, but instead of echoing $alt directly you need to echo $alt->post_excerpt.

  3. If you want to get the alt text of your featured image, you can get it with this code…

    <?php echo get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true); ?>

    So if you want to place it in a P tag, this will work…

    <p><?php echo get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true); ?></p>

    Hope it helps you, or someone at least.