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<?php $obj = new stdClass; $ref = 42; $obj->ref =& $ref; $clone = clone $obj; $clone->ref = 24; var_dump($obj, $clone);
Output for git.master, git.master_jit, rfc.property-hooks
object(stdClass)#1 (1) { ["ref"]=> &int(24) } object(stdClass)#2 (1) { ["ref"]=> &int(24) }

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