WordPress hack: Display post thumbnail in your RSS feed

Simply paste the following code in your functions.php file. The post thumbnail should be visible once you saved the file.

function diw_post_thumbnail_feeds($content) {
	global $post;
	if(has_post_thumbnail($post->ID)) {
		$content = '<div>' . get_the_post_thumbnail($post->ID) . '</div>' . $content;
	}
	return $content;
}
add_filter('the_excerpt_rss', 'diw_post_thumbnail_feeds');
add_filter('the_content_feed', 'diw_post_thumbnail_feeds');

Thanks to Jeff Starr for this great tip!

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WordPress hack: Display post thumbnail in your RSS feed