get featured image id wordpress code example

Example 1: get featured image url in wordpress

if ( has_post_thumbnail()) {
   $large_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large');
   echo '';
   the_post_thumbnail('thumbnail');
   echo '';
}

Example 2: get featured image id wordpress

get_post_thumbnail_id($post)