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run code in 200+ php & hhvm versions
Bugs & Features
<?php $obj = new stdClass; $ref = 42; $obj->ref =& $ref; $clone = clone $obj; $clone->ref = 24; var_dump($obj, $clone);
based on WojlB
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.1
object(stdClass)#1 (1) { ["ref"]=> &int(24) } object(stdClass)#2 (1) { ["ref"]=> &int(24) }