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<?php class Factory { public function getInstance() { static $instance = null; if ($instance === null) { $instance = new class() { private $var; public function get() { return $this->var; } public function set($value) { $this->var = $value; } }; } return $instance; } } $f = new Factory(); $o = $f->getInstance(); $o->set(5); $o2 = $f->getInstance(); var_dump($o2->get());

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