public static function main()
{
$flyweightFactory = new FlyweightFactory();
$flyweight = $flyweightFactory->getFlyweight("state A");
$flyweight->operation("state X");
$flyweight = $flyweightFactory->getFlyweight("state B");
$flyweight->operation("state B");
$flyweight1 = $flyweightFactory->getFlyweight("state B");
var_dump($flyweight == $flyweight1);
/**
* unshared objs
*/
$uflyweight = new UnsharedConcreteFlyweight('state A');
$uflyweight->operation('state Y');
}
public function getFlyweight($state)
{
if (is_array($state)) {
//复合模式
$uFlyweight = new UnsharedConcreteFlyweight();
foreach ($state as $row) {
$uFlyweight->add($row, $this->getFlyweight($row));
}
return $uFlyweight;
} else {
if (is_string($state)) {
if (isset($this->_flyweights[$state])) {
return $this->_flyweights[$state];
} else {
return $this->_flyweights[$state] = new ConcreteFlyweight($state);
}
} else {
return null;
}
}
}
