WordPress Version: 4.9
/**
* Handler for updating the current site's posts count when a post status changes.
*
* @since 4.0.0
* @since 4.9.0 Added the `$post` parameter.
*
* @param string $new_status The status the post is changing to.
* @param string $old_status The status the post is changing from.
* @param WP_Post $post Post object
*/
function _update_posts_count_on_transition_post_status($new_status, $old_status, $post = null)
{
if ($new_status === $old_status) {
return;
}
if ('post' !== get_post_type($post)) {
return;
}
if ('publish' !== $new_status && 'publish' !== $old_status) {
return;
}
update_posts_count();
}