Retrieves all of the WordPress supported post statuses.

Posts have a limited set of valid status values, this provides the
post_status values and descriptions.

function get_post_statuses() {
	$status = array(
		'draft'   => __( 'Draft' ),
		'pending' => __( 'Pending Review' ),
		'private' => __( 'Private' ),
		'publish' => __( 'Published' ),
	);

	return $status;
}