<?php 

interface IMemento {

    public function getCopy();

}



class Memento IMemento {

    //...

}



class FlyweightMemento implements IMemento {

    private static $mementos = array();

    private $stored;



    public function __construct($object) {

        $copy = null;

        foreach (static::$mementos as $memento)

            if ($memento->getCopy() == $object)

                $copy = $object;

        if ($copy == null) {

            $this->stored = clone $object;

            static::$mementos[] = $this->stored;

        }

        else

            $this->stored = $object;

    }

} 

<?php 

class EastDecorator {

    private $decorated;



    public function __construct($object) {

        $this->decorated = $object;

    }



    public function __call($name, $arguments) {

        call_user_func_array(array($object, $name), $arguments);

        return $this;

    }



    public function __set($name, $value) {

        $object->{$name} = $value;

        return $this;

    }



    public function __set($name, $arguments) {

        throw new BadMethodCallException("East does not allow getters");

    }

}