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<?php $a = new StdClass(); function something(&$first) { $b = clone $first; $b->value = 4; var_dump($b); } something($a); var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
object(stdClass)#2 (1) { ["value"]=> int(4) } object(stdClass)#1 (0) { }

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