class / conexao / conexao.php
            mvc   / modelos / PessoasModelos.php
                    visoes  / PessoasVisoes.php
                  controles / PessoasControles.php
           util   / classUtilitarios.php

$DS = DIRECTORY_SEPARATOR;

   $paths[] = __DIR__ . $DS  . "class" . $DS  . "conexao" . $DS . $class . ".php";
   $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "modelos" . $DS . $class . ".php";
   $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "visoes" . $DS . $class . ".php";
   $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "controles" . $DS . $class . ".php";
   $paths[] = __DIR__ . $DS  . "class" . $DS  . "classUtilitarios" . $DS . $class . ".php";

foreach ( $paths as $path ) :

    if ( file_exists( $path ) ) require_once $path;

endforeach;

function autoload( $class ) {

       $DS = DIRECTORY_SEPARATOR;

       $paths[] = __DIR__ . $DS  . "class" . $DS  . "conexao" . $DS . $class . ".php";
       $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "modelos" . $DS . $class . ".php";
       $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "visoes" . $DS . $class . ".php";
       $paths[] = __DIR__ . $DS  . "class" . $DS  . "mvc" . $DS  . "controles" . $DS . $class . ".php";
       $paths[] = __DIR__ . $DS  . "class" . $DS  . "classUtilitarios" . $DS . $class . ".php";

    foreach ( $paths as $path ) :

        if ( file_exists( $path ) ) require_once $path;

    endforeach;

}

spl_autoloader_register("autoload");

foreach ( $paths as $path ) :
         if(count($path.subpath > 0 ) função recursiva...
        if ( file_exists( $path ) ) require_once $path;

    endforeach;