Load and instantiate MODxAPi from a directory

modx.api.connector.php

<?php
    if( !isset($modx) ) {
      /*Test the realpath by just starting with /../ and keep adding till you get where you're going*/
      $modx_base_path = realpath(dirname(__FILE__) . '/../../../../../');
      define('MODX_BASE_PATH', $modx_base_path.'/' );
      
      $old_dir = getcwd();
      chdir(MODX_BASE_PATH);

      require MODX_BASE_PATH . 'manager/includes/config.inc.php';
      require MODX_BASE_PATH . 'manager/includes/document.parser.class.inc.php';
      require MODX_BASE_PATH . 'MODxAPI.class.php';
      $modx = new MODxAPI;
      $modx->connect();
      
      chdir($old_dir);
    }