Online PHP editor | refs for hApSU

<?php class T { private $a = array(); public function add($item) { $this->a[] = $item; } public function printIt() { echo join(', ', $this->a) . "\n"; } } class W { private $t; public function __construct() { $this->t = new T(); } public function add($item) { $this->t->add($item); } public function printIt() { $this->t->printIt(); } public function __clone() { $this->t = clone $this->t; } } $a = new W(); $a->add(1); $b = clone $a; $b->add(2); $a->printIt(); $b->printIt();