The issue with the coide for displaying only posts with thumbnails in the past has been that you query the posts type and then put a ‘if has post thumbnail’ conditional in the loop. This means that if you wanted 12 posts and that how many you get in the query, maybe only 6 have thumbnails/featured images.
Then you only display 6 – not the 12 you were after.
following the docu from ‘has_post_thumbnail()’ to this:
shows that the thumbnails are stored in a custom field with the key ‘_thumbnail_id’
then use the custom field parameter of query_posts()
query to get only posts with thumbnail:
<pre><code><?php $paged = (get_query_var('paged')) ? get_query_var('paged') : 1; // pagination $args = array( 'posts_per_page' => -1, // optional to overwrite the dashboard setting 'paged' => $paged, 'meta_key' => '_thumbnail_id' ); query_posts($args); ?></code></pre>
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