Base64_Url Base64_Url Encode and decode values in Base64 that is URI safe. ContentsDescription Source Changelog Related Namespace @package Methods Description # Source # File: src/Core/Utilities/Base64_Url.php Changelog # Changelog Version Description 5.0.0 Introduced. Related # Namespace # LearnDash @package # LearnDash / Core Methods # decode — Decode a base64 string into its original value. encode — Encode a string to a URL safe base64 string.