Factory pattern

Mon Oct 27, 2008 12:14 pm

Code:: <?php class ClassFactory{ private $registeredClasses = array(); static private $instance = NULL; private function __construct() {} static function getInstance(){ if(self::$instance == NULL){ self::$instance = new ClassFactory(); } return self::$instance; } function registerClass($id, $creator_func){ $this->registeredClasses[$id] = $creator_func; } function createObject($id, $args) { if(!isset($this->registeredClasses[$id])){ return(NULL); } return($this->registeredClasses[$id]($args)); } } function MyClassCreator(){ return "creator"; } $factory = ClassFactory::getInstance(); $factory->registerClass(1, "MyClassCreator"); $instance = $factory->createObject(1, array()); ?>