C:\Program Files\OSGeo\MapGuide\Web\www\phpsamples\hello_map\..\common\common.php

<?php
//  Copyright (C) 2004-2011 by Autodesk, Inc.
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of version 2.1 of the GNU Lesser
//  General Public License as published by the Free Software Foundation.
//
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

// Define some commonly used directories and files

$webRootDirectory = dirname(__FILE__)."/../..";
$viewerFilesDirectory = $webRootDirectory . '/viewerfiles';  
$schemaDirectory = dirname(__FILE__);
$webconfigFilePath = $webRootDirectory . '/webconfig.ini';
// Include constants like MgServiceType::ResourceService
require_once($webRootDirectory . '/mapadmin/constants.php');	

?>