_update_posts_count_on_transition_post_status() WordPress Function

The _update_posts_count_on_transition_post_status() function is a utility function that is used to update the count of posts for a given post type when the post status is changed. This function is typically used when a post is published or unpublished.

_update_posts_count_on_transition_post_status( string $new_status, string $old_status, WP_Post $post = null ) #

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();
}