PHP:
class object1{
public $attr1;
public $attr2;
}
class object2{
...
public $referencedObject
__construct(...,...,...,$_referencedObject){
$this->referencedObject=$_referencedObject;
}
}
[myfile.php]
$obj1=new object1(...);
$obj2=new object2(...,...,...,$obj1);
/*----->*/ $obj2->referencedObject->attr1=$someValue;