autoload.php

<?php
if (!defined('__MINDS_ROOT__')) {
    define('__MINDS_ROOT__', dirname(__FILE__));
}
// prep core classes to be autoloadable
spl_autoload_register('_minds_autoload');

/**
 * Autoload classes
 *
 * @param string $class The name of the class
 *
 * @return void
 * @throws Exception
 * @access private
 */
function _minds_autoload($class)
{
    global $CONFIG;

    if (file_exists(__MINDS_ROOT__."/classes/$class.php")) {
        include(__MINDS_ROOT__."/classes/$class.php");
        return true;
    }

    if (isset($CONFIG->classes[$class])) {
        include($CONFIG->classes[$class]);
        return true;
    }

    $file = dirname(__FILE__) . '/'. preg_replace('/minds/i', '', str_replace('\\', '/', $class), 1) . '.php';
    //echo $file;
    if (file_exists($file)) {
        require_once $file;
        return true;
    }

    //plugins follow a different path (new style)
    $file = str_replace('/Plugin/', '/../plugins/', $file);
    if (file_exists($file)) {
        require_once $file;
        return true;
    }

    //plugins follow a different path (old style)
    $file = str_replace('/plugin/', '/../plugins/', $file);
    if (file_exists($file)) {
        require_once $file;
        return true;
    }
}