DAV_SEARCH_ID() returns the RES_ID or COL_ID, depending on the
    @what@ parameter passed. (@R@esource or @C@ollection
    or @P@arent collection).DAV_SEARCH_PATH() returns full path string of resource or collection,
    depending on parameter passed. (@R@esource or @C@ollection or
    @P@arent collection).DAV_DIR_LIST() returns an array of arrays that contains the
    following information about the requested path: