*/
function llms_get_enrolled_students( $post_id, $statuses = 'enrolled', $limit = 50, $skip = 0 ) {

	$query = new LLMS_Student_Query(
		array(
			'post_id'       => $post_id,
			'statuses'      => $statuses,
			'page'          => ( 0 === $skip ) ? 1 : ( $skip / $limit ) + 1,
			'per_page'      => $limit,
			'sort'          => array(
				'id' => 'ASC',
			),
			'no_found_rows' => true,
		)
	);

	if ( $query->has_results() ) {
		return wp_list_pluck( $query->get_results(), 'id' );
	}

	return array();