learndash_course_add_child_to_parent learndash_course_add_child_to_parent( int $course_id, int $child_id, int $parent_id ) Add a step as child of a parent. ContentsDescription Parameters Return Source Changelog Related Namespace @package Description # Parameters # $course_id (int) (Required) Course post ID. $child_id (int) (Required) Child post ID. $parent_id (int) (Required) Parent post ID. Return # (bool) True if successful, false otherwise. Source # File: includes/course/ld-course-steps-functions.php Changelog # Changelog Version Description 4.8.0 Introduced. Related # Namespace # global @package # LearnDash / Course_Steps