<?php
$someVar = new Obj();

// random magic here

function example() {
   echo $someVar->beh;
}

?>

<?php
class registry
{
   const ERR_PROPERTY_NON_EXISTANT = 1;

   public static $instance;

   private $registry;

   public function __construct($registry)
   {
      if(!is_array($registry))
      {
         $this->registry = array();
      }
      else
      {
         $this->registry = $registry;
      }
   }

   public static function getRegistry($registry = false)
   {
      if(!isset(self::$instance))
      {
         self::$instance = new self($registry);
      }

      return self::$instance;
   }

   public function __get($property)
   {
      if(isset($this->registry[$property]))
      {
         return $this->registry[$property];
      }
      else
      {
         throw new Exception('Registry property does not exist.', self::ERR_PROPERTY_NON_EXISTANT);
      }
   }

   public function __set($property, $value)
   {
      $this->registry[$property] = $value;
   }
}

/*
* Example usage
*/

$set = array(
   'foo' => 'I am foo.',
   'bar' => 'I am bar.'
);

// Notice no 'new' keyword for instantiation
$registry = registry::getRegistry($set);

// Use object's getter to retrieve value
echo $registry->foo, "\n", $registry->bar, "\n";

// set a new registered item (or change an existing) with object's setter
$registry->bork = 'I am bork.';

echo $registry->bork, "\n";
?>