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<?php class ObjectWithReferences { private $var1; private $var2; public function __construct() { $this->var1 = new StdClass(); $this->var2 = $this->var1; } } class WrapperObject implements Serializable { private $obj; public function __construct($obj) { $this->obj = $obj; } public function getObject() { return $this->obj; } public function serialize() { return serialize($this->obj); } public function unserialize($serialized) { unserialize('O:8:"stdClass":0:{}'); $this->obj = unserialize($serialized); } } $wrapper = new WrapperObject(new ObjectWithReferences()); var_dump($wrapper->getObject()); $wrapper = unserialize(serialize($wrapper)); var_dump($wrapper->getObject());
Output for 5.4.45, 5.5.29 - 5.5.37, 5.6.13 - 5.6.23, 7.0.6 - 7.1.0
object(ObjectWithReferences)#2 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } ["var2":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } } object(ObjectWithReferences)#6 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#7 (0) { } ["var2":"ObjectWithReferences":private]=> *RECURSION* }
Output for 5.4.0 - 5.4.44, 5.5.0 - 5.5.28, 5.6.0 - 5.6.12, 7.0.0 - 7.0.5
object(ObjectWithReferences)#2 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } ["var2":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } } object(ObjectWithReferences)#5 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#6 (0) { } ["var2":"ObjectWithReferences":private]=> *RECURSION* }
Output for 5.3.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
object(ObjectWithReferences)#2 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } ["var2":"ObjectWithReferences":private]=> object(stdClass)#3 (0) { } } object(ObjectWithReferences)#5 (2) { ["var1":"ObjectWithReferences":private]=> object(stdClass)#6 (0) { } ["var2":"ObjectWithReferences":private]=> object(stdClass)#6 (0) { } }
Output for 5.1.0 - 5.2.17
object(ObjectWithReferences)#2 (2) { ["var1:private"]=> object(stdClass)#3 (0) { } ["var2:private"]=> object(stdClass)#3 (0) { } } object(ObjectWithReferences)#5 (2) { ["var1:private"]=> object(stdClass)#6 (0) { } ["var2:private"]=> object(stdClass)#6 (0) { } }
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/JbqmH on line 14
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/JbqmH on line 14
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JbqmH on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JbqmH on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/JbqmH on line 4
Process exited with code 255.