Wrapper class for loading a MODx instance from a specific path on disk and interacting with it

ModxWrapper.php

<?php

    namespace AlanPich\Tools;

    class ModxWrapper
    {
        /** @var \modX */
        protected $modx;

        /** @var string */
        public $path;


        public function __construct($path)
        {
            $this->path = $path;
            define('MODX_API_MODE', 1);
            /** @var \modX $modx */
            require rtrim($path, '/') . '/index.php';
            $this->modx = $modx;
        }


        /**
         * Unset $modx property before serialization
         *
         * @return array
         */
        public function __sleep()
        {
            return array('path');
        }

        /**
         * Re-establish $modx property on unserialization
         */
        public function __wakeup()
        {
            define('MODX_API_MODE', 1);
            /** @var \modX $modx */
            require rtrim($this->path, '/') . '/index.php';
            $this->modx = $modx;
        }


        /**
         * Passes method calls through to modX instance
         *
         * @param $name
         * @param $args
         * @return mixed
         */
        public function __call($name, $args)
        {
            return call_user_func_array(array($this->modx, $name), $args);
        }

        /**
         * Passes parameter gets through to modX instance
         *
         * @param $key
         * @return mixed
         */
        public function __get($key)
        {
            return $this->modx->$key;
        }

        /**
         * Passes setter requests through to modx
         *
         * @param $key
         * @param $val
         * @return mixed
         */
        public function __set($key, $val)
        {
            return $this->modx->$key = $val;
        }

        /**
         * Passthru isset request to modX instance
         *
         * @param $key
         * @return bool
         */
        public function __isset($key)
        {
            return isset($this->modx->$key);
        }

        /**
         * Passthru unset requests to modX instance
         * @param $key
         */
        public function __unset($key)
        {
            unset($this->modx->$key);
        }
    }

usage.php

<?php

$modx = new \AlanPich\Tools\ModxWrapper('/path/to/modx/root');

$siteName = $modx->getOption('site_name');

$res = $modx->newObject('modResource');
$res->fromArray(array(
    'pagetitle' => 'Hello World',
    'introtext' => 'This was created on the command line!'
));