pabx-app/autoload/autoload.php

<?php

require_once("JsonAutoload.php");

class Autoload
{

    public function __construct()
    {
        spl_autoload_extensions(".php");
        spl_autoload_register(array($this, 'SIP_autoload'));
    }

    /* selecionar qual biblioteca chamar */
    private function SIP_Autoload($classname)
    {
        $classname = $this->LibAutoload($classname, new JsonAutoload());
        $path_filename = preg_replace("/\\\\/", "/", "$classname");
        $file_to_load = "$path_library$path_filename.php";

        $this->include_file($file_to_load);
    }

    private function LibAutoload($classname, $autoload_json)
    {
        $classname = $autoload_json->get_NamespaceToPathname($classname);
        return $classname;
    }

    private function include_file($file)
    {
        try {
            require_once($file);
        } catch (Exception $e) {
            echo "$file\n", $e->getMessage(), "\n";
            die();
        }
        return true;
    }
}

new Autoload();