--TEST-- Object test, __wakeup (With multiple references) --SKIPIF-- --FILE-- a = $a; $this->b = $b; } function __wakeup() { $this->b = $this->a * 3; } } function main() { $o = new Obj(1, 2); $variable = array(&$o, &$o); $serialized = igbinary_serialize($variable); $unserialized = igbinary_unserialize($serialized); echo substr(bin2hex($serialized), 8), "\n"; echo $unserialized[0]->b === 3 && $unserialized[0]->a === 1 ? 'OK' : 'ERROR'; echo "\n"; $unserialized[0] = 'a'; var_dump($unserialized); } main(); --EXPECT-- 140206002517034f626a1402110161060111016206020601252201 OK array(2) { [0]=> &string(1) "a" [1]=> &string(1) "a" }