Online PHP editor | refs for b4ij1

<?php class SomeObject { private $name; public function __construct($name) { $this->name = $name; } } class SomeClass1 { private $object; public function __construct($object) { $this->object = $object; } public function getObject() { return $this->object; } } class SomeClass2 { private $object; public function __construct(&$object) { $this->object = $object; } public function getObject() { return $this->object; } } $object1 = new SomeObject('obj1'); $object2 = new SomeObject('obj2'); $someClass1 = new SomeClass1($object1); $someClass2 = new SomeClass2($object2); $object1 = null; $object2 = null; var_dump($someClass1->getObject()); var_dump($someClass2->getObject()); var_dump($object1); var_dump($object2);