PHP file accessing $modx->config outside modx

DocumentParser Object ( [db] => DBAPI Object ( [conn] => [config] => Array ( [host] => ... [dbase] => `...` [user] => ... [pass] => ... [charset] => latin1 [connection_method] => SET CHARACTER SET [table_prefix] => modx_ ) [isConnected] => [_dbconnectionmethod] => SET CHARACTER SET [dataTypes] => Array ( [numeric] => Array ( [0] => INT [1] => INTEGER [2] => TINYINT [3] => BOOLEAN [4] => DECIMAL [5] => DEC [6] => NUMERIC [7] => FLOAT [8] => DOUBLE PRECISION [9] => REAL [10] => SMALLINT [11] => MEDIUMINT [12] => BIGINT [13] => BIT ) [string] => Array ( [0] => CHAR [1] => VARCHAR [2] => BINARY [3] => VARBINARY [4] => TINYBLOB [5] => BLOB [6] => MEDIUMBLOB [7] => LONGBLOB [8] => TINYTEXT [9] => TEXT [10] => MEDIUMTEXT [11] => LONGTEXT [12] => ENUM [13] => SET ) [date] => Array ( [0] => DATE [1] => DATETIME [2] => TIMESTAMP [3] => TIME [4] => YEAR ) ) ) [event] => SystemEvent Object ( [name] => [_propagate] => 1 [_output] => [activated] => [activePlugin] => ) [Event] => SystemEvent Object ( [name] => [_propagate] => 1 [_output] => [activated] => [activePlugin] => ) [pluginEvent] => Array ( ) [config] => [rs] => [result] => [sql] => [table_prefix] => [debug] => [documentIdentifier] => [documentMethod] => [documentGenerated] => [documentContent] => [tstart] => [minParserPasses] => [maxParserPasses] => [documentObject] => [templateObject] => [snippetObjects] => [stopOnNotice] => [executedQueries] => [queryTime] => [currentSnippet] => [documentName] => [aliases] => [visitor] => [entrypage] => [documentListing] => [dumpSnippets] => [chunkCache] => [snippetCache] => [contentTypes] => [dumpSQL] => [queryCode] => [virtualDir] => [placeholders] => [sjscripts] => Array ( ) [jscripts] => Array ( ) [loadedjscripts] => Array ( ) [documentMap] => [forwards] => 3 [dbConfig] => Array ( [host] => ... [dbase] => `...` [user] => ... [pass] => ... [charset] => latin1 [connection_method] => SET CHARACTER SET [table_prefix] => modx_ ) ) 

<?php 
function moo() {
  global $modx;

}

$path = 'path/to/api/file';
include_once($path.'modxapi.php');

$modx = new MODxAPI();
// connect to db and load settings

$modx->connect();
$modx->getSettings();

<?php
/**
 * MODx API Library 
 * Use this api to connect to the MODx Content Managment System
 * 
 * @author: Raymond Irving, 2006
 *
 */
 
 
$_api_path = dirname(__FILE__).'/';

// include config file
include_once($_api_path.'manager/includes/config.inc.php');

// include modx parser file
include_once($base_path.'manager/includes/document.parser.class.inc.php');

class MODxAPI extends DocumentParser {

	function MODxAPI() {
	
		$this->startSession();
		parent::DocumentParser();
		
		// set some parser options
		$this->minParserPasses = 1;		// min number of parser recursive loops or passes
		$this->maxParserPasses = 10;	// max number of parser recursive loops or passes
		$this->dumpSQL = false;
		$this->dumpSnippets = false;
		
		// set start time
		$this->tstart = $this->getMicroTime();	// feed the parser the execution start time	

	}

	// execute parser and return results - To be finalized
	function executeDocument($docid = 0) {
		ob_start();
			ob_start();
				$tmp = $_REQUEST['id']; // save old id
				$_REQUEST['id'] = $docid;
				$this->executeParser();
		$html = ob_get_contents();
		ob_end_clean();
		$_REQUEST['id'] = $tmp; // restore old id
		return $html;		
	}
	
	// connect to MODx database - use $modx->db->query();
	function connect() {
		 $this->db->connect();
	}
	
	function startSession() {
		startCMSSession();
	}		
}

?>

<?php

function moo() {
  global $modx;

  // connect db
  // actually you don't have to use this, MODx always starts a connection when parsing its document,
  // and shuts down after finish.
  $modx->db->connect;

  // want to get document?
  $modx->documentName;
  $modx->documentContent;
  $modx->documentObject;
  // etc...

  // more advance, retrieving value from your custom DB?
  // untested, but I had used this sort of like this
  $row=$modx->getRow($modx->query('SELECT/INSERT/UPDATE/DELETE queries'),assoc);
  //let's say...
  if ($row['username']==$_POST['username'] {
    echo 'Hello '.$row['username'];
  }
  // else denied?
  
}