LocalSettings.php (MediaWiki)

Computing: Software: MediaWiki: LocalSettings.php

Overview
LocalSettings.php is a PHP file which contains all the installation-specific settings for an installation of MediaWiki. It is generated at install time, apparently by combining DefaultSettings.php with specific settings entered on the setup web page, but it contains many settings which are not adjustable during that process (i.e. the site admin may want to further edit the file after installation is complete).

Reference

 * MediaWiki.org