AutoLoader.php

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<?php
require_once __DIR__ . '/../autoload.php';

class AutoLoader {
    static protected $autoloadLocalClassesLower = null;

    static function autoload( $className ) {
        global $wgAutoloadClasses, $wgAutoloadLocalClasses,
            $wgAutoloadAttemptLowercase;

        $filename = false;

        if ( isset( $wgAutoloadLocalClasses[$className] ) ) {
            $filename = $wgAutoloadLocalClasses[$className];
        } elseif ( isset( $wgAutoloadClasses[$className] ) ) {
            $filename = $wgAutoloadClasses[$className];
        } elseif ( $wgAutoloadAttemptLowercase ) {
            /*
             * Try a different capitalisation.
             *
             * PHP 4 objects are always serialized with the classname coerced to lowercase,
             * and we are plagued with several legacy uses created by MediaWiki < 1.5, see
             * https://wikitech.wikimedia.org/wiki/Text_storage_data
             */
            $lowerClass = strtolower( $className );

            if ( self::$autoloadLocalClassesLower === null ) {
                self::$autoloadLocalClassesLower = array_change_key_case( $wgAutoloadLocalClasses, CASE_LOWER );
            }

            if ( isset( self::$autoloadLocalClassesLower[$lowerClass] ) ) {
                if ( function_exists( 'wfDebugLog' ) ) {
                    wfDebugLog( 'autoloader', "Class {$className} was loaded using incorrect case" );
                }
                $filename = self::$autoloadLocalClassesLower[$lowerClass];
            }
        }

        if ( !$filename ) {
            // Class not found; let the next autoloader try to find it
            return;
        }

        // Make an absolute path, this improves performance by avoiding some stat calls
        if ( substr( $filename, 0, 1 ) != '/' && substr( $filename, 1, 1 ) != ':' ) {
            global $IP;
            $filename = "$IP/$filename";
        }

        require $filename;
    }

    static function resetAutoloadLocalClassesLower() {
        self::$autoloadLocalClassesLower = null;
    }
}

spl_autoload_register( [ 'AutoLoader', 'autoload' ] );