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<?php class A { var $aa = 1; } class B { var $objA; function setA(A $objA) { $this->objA = $objA; } } $objA = new A; $objB = new B(); $objB->setA($objA); $objB->objA->aa = 666; var_dump($objA, $objB);
Output for git.master, git.master_jit, rfc.property-hooks
object(A)#1 (1) { ["aa"]=> int(666) } object(B)#2 (1) { ["objA"]=> object(A)#1 (1) { ["aa"]=> int(666) } }

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