WordPress : Comment inclure l’image mise en avant des articles dans les flux de syndication RSS d’un site ?

/**
 * Featured image to RSS feed
 * @link https://woorkup.com/show-featured-image-wordpress-rss-feed/
 * @link https://developer.wordpress.org/reference/functions/get_the_post_thumbnail_url/
 * @updates
 * - 20200530 Using get_the_post_thumbnail_url() instead of get_the_post_thumbnail()
 */
function featuredtoRSS($content) {
  global $post;
  if ( has_post_thumbnail( $post->ID ) )
    $content = '<div id="thumbnail" style="margin-bottom:15px"><img src="' . get_the_post_thumbnail_url( $post->ID, 'full' ) . '"/></div>' . $content;
  return $content;
}
 
#add_filter('the_excerpt_rss', 'featuredtoRSS');
add_filter('the_content_feed', 'featuredtoRSS');

add_filter( 'the_content', function( $content ) {
  global $post;
  if ( has_post_thumbnail( $post->ID ) )
    $content = '<figure id="thumbnail" style="display:none"><img src="' . get_the_post_thumbnail_url( $post->ID, 'full' ) . '"/></figure>' . $content;
  return $content;
});

L’utilisation de ce snippet n’exclut pas celle de l’extension RSS Featured Image.

Insérez simplement ce code dans le fichier functions.php de votre thème enfant ou utilisez l’extension Code Snippets.