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<?php $x=new stdClass;$x->prop = "foo";$y = $x; $x = null; var_dump($y); $x=new stdClass;$x->prop = "foo";$y = &$x; $x = null; var_dump($y);
Output for git.master, git.master_jit, rfc.property-hooks
object(stdClass)#1 (1) { ["prop"]=> string(3) "foo" } NULL

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