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<?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(); } } $a = new W(); $a->add(1); $b = clone $a; $b->add(2); $a->printIt(); $b->printIt();
Output for git.master, git.master_jit, rfc.property-hooks
1, 2 1, 2

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