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<?php class A {}; $a = new A; $b = $a; $c = &$a; $c = new stdClass; var_dump($a, spl_object_hash($a)); var_dump($b, spl_object_hash($b)); var_dump($c, spl_object_hash($c));
Output for git.master, git.master_jit, rfc.property-hooks
object(stdClass)#2 (0) { } string(32) "00000000000000020000000000000000" object(A)#1 (0) { } string(32) "00000000000000010000000000000000" object(stdClass)#2 (0) { } string(32) "00000000000000020000000000000000"

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