[Resolved] {{unknown}} in front of post excerpt

[Pilxy]

Not sure what’s going on and when this started happening, but in front of some post excerpt on blog page the word {{unknown}} appears.

Tom, can you please check to see if you can help me find a solution?

My blog page is accesible here.

Thanks!

[Pilxy]

Maybe just to add this:

Those words were not there at the moment the posts were published, they appeared later, but I’m not sure exactly when.

[Tom]

That’s weird, never seen that before.

Can you try deactivating all of your plugins and see if it’s still there?

Also check the posts themselves and remove it if you can.

[Pilxy]

I figured it out. In my child theme I have altered the excerpts to show videos that are in the post. I was using this code:

/*
* show video in post excerpt
*/

function custom_wp_trim_excerpt($text) {
  $raw_excerpt = $text;
  if ( '' == $text ) {
    $text = get_the_content(''); // Original Content
    $text = strip_shortcodes($text); // Minus Shortcodes
    $text = apply_filters('the_content', $text); // Filters
    $text = str_replace(']]>', ']]>', $text); // Replace
    
    $excerpt_length = apply_filters('excerpt_length', 55); // Length
    $excerpt_more = apply_filters('excerpt_more', ' ' . '<a class="readmore" href="'. get_permalink() .'">&raquo;</a>');
    $text = wp_trim_words( $text, $excerpt_length, $excerpt_more );
    
    // Use First Video as Excerpt
    $postcustom = get_post_custom_keys();
    if ($postcustom){
      $i = 1;
      foreach ($postcustom as $key){
        if (strpos($key,'oembed')){
          foreach (get_post_custom_values($key) as $video){
            if ($i == 1){
              $text = $video.$text;
            }
          $i++;
          }
        }  
      }
    }
  }
  return apply_filters('wp_trim_excerpt', $text, $raw_excerpt);
}
remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'custom_wp_trim_excerpt');

When I removed this code, the words {{unknown}} dissapear.

It solved the issue, but now I have to find the other way to show those videos…

[Tom]

Have you tried using the “Video” format? (look for the “Formats” metabox when adding your post).

[Pilxy]

I have tried, but choosing the video format does nothing, excerpt on the blog page comes out empty. You have to click on the post, to see the video, but I wan’t the video to be shown in the excerpt…

[Tom]

Can you give this a try? http://wordpress.stackexchange.com/questions/160735/display-oembed-in-the-excerpt

[Pilxy]

I have tried these

add_filter('the_excerpt', array($wp_embed, 'autoembed'), 9);

and

global $wp_embed;
add_filter( 'the_excerpt', array( $wp_embed, 'autoembed' ), 9 );

But unfortunately none of them works.

[Tom]

Can you try this one:

add_filter('the_excerpt', array($GLOBALS['wp_embed'], 'autoembed'), 9);

[Pilxy]

Nope, this one doesn’t work either.

I searched the web quite a lot yesterday and tried some other solutions too, but I didn’t have any luck…

[Tom]

Interesting – I’ll have to look into this further and maybe include it built in with a future update.

For now, try using the embed code provided by YouTube.

[Pilxy]

Youtube embed code does not work either. As far as I know, wordpress strips all the codes (HTML, shortcodes, multimedia, etc.) in the excerpt and only text is shown.

It would be a great feature to have it built in the theme.

[Tom]

I agree, I’ll look into this further 🙂

[Pilxy]

Thanks Tom, I must say I admire your outstanding support. Keep up the great work! 🙂

[Tom]

Just letting you know that in 1.2.9 you can choose the “Video” post format, and it will show full content (so oembed and youtube embeds will show up).

Thanks!

[Author]

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