<?php class Clazz { private $data; public function __construct($data) { $this->data = $data; } public function getData() { return $this->data; } } $arr = new \ArrayObject(array(1,2)); $clazz = new Clazz($arr); var_dump($clazz->getData()); $arr->append(3); var_dump($clazz->getData());
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