<?php

 /**
  * The DocumentRoot class is a simple class that fixes a problem with Windows where PHP does not
  * have $_SERVER['DOCUMENT_ROOT'] built in. A single function within this class produces the proper
  * Document Root for Windows. The structure on how to call this class is below.
  *
  * include('includes/classes/DocumentRoot.php');
  * $docroot = new DocumentRoot();
  * echo $docroot->getDocRoot().'<br><br>';
  * 
  * Additional documentation for the getDocRoot function is included.
  *
  * @author Allan Bogh - hide@address.com
  * @version 1.0 - based on research on www.helicron.net/php
  **/
 class DocumentRoot{
 
 function DocumentRoot(){
 }
 
 /**
  * getDocRoot fixes a problem with Windows where PHP does not have $_SERVER['DOCUMENT_ROOT']
  * built in. getDocRoot returns what $_SERVER['DOCUMENT_ROOT'] should have. It should work on
  * other builds, such as Unix, but is best used with Windows. There are two return cases for
  * Windows, one is the document root for the server's web files (c:/inetpub/wwwroot), the 
  * other version is the first folder beyond that point (if documents are stored in user folders).
  * 
  * @author Allan Bogh - hide@address.com
  * @version 1.0 - based on research on www.helicron.net/php
  *
  * @param $folderFix - This optional parameter tells the function to include the first folder in
  *						the return (c:/inetpub/wwwroot/userfolder instead of c:/inetpub/wwwroot).
  *						Set to true if folder should be returned.
  * @return The document root string.
  **/
 function getDocRoot($folderFix=false){
	 //sets up the localpath
	 $localpath = getenv("SCRIPT_NAME");
	 //checks to include the user folder
	 if($folderFix){
	 	$localpath = substr($localpath,strpos($localpath,'/',1),strlen($localpath));
	 }
	 
	 //realpath sometimes doesn't work, but gets the full path of the file
	 $absolutepath = realpath($localpath);
	 if((!isset($absolutepath) || $absolutepath=="") && isset($_SERVER['ORIG_PATH_TRANSLATED'])){
		$absolutepath = $_SERVER['ORIG_PATH_TRANSLATED'];
	 }
	
	 //checks if Windows is being used to replace the \ to /
	 if(isset($_SERVER['OS']) && (strpos($_SERVER['OS'],'Windows') > -1)){
		$absolutepath = str_replace("\\","/",$absolutepath);
	 }
	 
	 //prepares the document root string
	 $docroot = substr($absolutepath,0,strpos($absolutepath,$localpath));
	 return $docroot;
 }
 
 }
?>