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<?php class A { protected $a; public function setA($a) { $this->a = $a; } } class B { public function changeA(A $obj) { $obj->setA('bar'); } } $obj = new A(); $obj->setA('foo'); var_dump($obj); $c = new B(); $c->changeA($obj); var_dump($obj);
Output for git.master, git.master_jit, rfc.property-hooks
object(A)#1 (1) { ["a":protected]=> string(3) "foo" } object(A)#1 (1) { ["a":protected]=> string(3) "bar" }

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