learndash_on_iis learndash_on_iis() Checks if the server is on Microsoft IIS. ContentsDescription Return Source Changelog Related Namespace @package Description # Return # (boolean) Returns true if the server is on Microsoft IIS otherwise false. Source # File: includes/ld-misc-functions.php Changelog # Changelog Version Description 2.1.0 Introduced. Related # Namespace # global @package # LearnDash / Misc