koukam naky svoje stary snippety, tenhle vam treba vylistuje vsechny posty, kde nemate featured image :D staci ulozit jako neco.php a spustit pres url
<?php
header( 'Content-type: text/html; charset=utf-8' );
?>
<style>
* {
font-family: arial;
}
th {
text-align: left;
}
</style>
<h3>Výpis článků bez úvodních obrázků</h3>
<h4><a href="attachments.php">ZKONTROLOVAT</a></h4>
<?php
include( 'wp-load.php' );
global $post;
$args = array(
'post_type' => array( 'post' ),
'posts_per_page' => - 1,
'orderby' => 'id',
'order' => 'ASC'
);
$the_query = new WP_Query( $args );?>
<?php if ( $the_query->have_posts() ) : ?>
<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<?php $thumb = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'thumbnail_size' );
$url = $thumb['0'];
?>
<?php if ( ! $url ) : ?>
<?php $post_ID = get_the_ID(); ?>
<?php edit_post_link('UPRAVIT', '', ' - '); ?>
<a href="<?php the_permalink(); ?>" target="_blank">
<?php the_title(); ?>
</a><br/>
<?php endif; ?>
<?php endwhile; ?>
<?php wp_reset_postdata(); ?>
<?php endif; ?>
</table>