Manual:Index.php

index.php is the main access point for a MediaWiki site. The other main access point is  which handles requests for the MediaWiki .

Actions taken
Most requests result in the following actions in :


 * 1) Ensure the version of PHP is supported, otherwise display an error.
 * 2) First, it includes , which mainly just includes . This in turn sets up the PHP environment for MediaWiki, such as installing the class autoloader, including the vendor dependencies loading , and applying the site's  file.
 * 3) Next, it instantiates the MediaWiki class from , which is responsible for interpreting URL parameters like "title" and "action" to determine what the current request should do. It then dispatches the relevant Action subclass to do that thing.
 * 4) Finally,   is called, which does things like closing database transactions, and running any deferred updates.