Passing instance objects between controller and model

in order to prevent include_once calls we made a pre controller Hook which autoloads those classes 
and all classes are stored within a new folder called objects inside the application directory

PHP Code:

class AppAutoLoadObjects {

    private $arrObjectPaths = array(
        'objects/',
        'objects/core/'
    );
            
    public function initialize()
    {
        spl_autoload_register(array($this,'autoloadObjects'));
    }

    public function autoloadObjects($class)
    {
        if(strpos($class, 'CI_') !== 0) {
            foreach($this->arrObjectPaths as $dir) {
                if (file_exists(APPPATH.$dir.'/'.$class.'.php'))
                {
                    require_once(APPPATH.$dir.'/'.$class.'.php');
                }
            }
        }
    }
} 


and the hook in your hooks.php is very simple

PHP Code:

$hook['pre_system'][] = array(
    'class' => 'AppAutoLoadObjects',
    'function' => 'initialize',
    'filename' => 'AppAutoLoadObjects.php',
    'filepath' => 'hooks'
);