DeBot Framework


core/Singleton.php



/**
 * DeBot Core - Singleton
 * Created by dab ??? ?? 2009
 * Last Edited: Aug 15 2010
 * 
 * This class lets us makes all of the classes available anywhere via a
 * static call. Also makes sure an object isn't declared more than once.
 * Utilizes the get_called_class function only available in PHP 5.3+. 
 *
 * Sorry non 5.3-ers :(
 * 
 * @author David (dab) 
 * @version v1.0
*/
class Singleton
{
    /**
     * Our objects are stored here (The object instances)
     *
     * @var array
     */
	private static $m_aObjs;
	
	private function __construct( )
	{
		
	}
	
    /**
     * Use this to fetch the object of the er... object? It's 3am. I can't
     * think of the correct terms...
     *
     * @return object The object from the class
     */
	public static function obj( )
	{
		$for = get_called_class( );
		
		if ( !isset( self :: $m_aObjs[ $for ] ) )
			self :: $m_aObjs[ $for ] = new $for ( );
		
		return self :: $m_aObjs[ $for ];
	}
	
	public function __clone( )
	{
		trigger_error('Cloning doesn\'t exist fool.', E_USER_ERROR);
	}
	
	public function __wakeup( )
	{
		trigger_error( 'Class isn\'t asleep.', E_USER_ERROR );
	}
	
}

?>

DeBot Framework