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run code in 300+ PHP versions simultaneously
<?php class parentobj implements Serializable { protected $data; private $extradata; public function __construct() { $this->data = new temp("My private data"); } public function getData() { return $this->data; } public function setData($data) { $this->data = $data; } public function getExtraData(){ $this->extradata = array( 'data1','data2' ); } public function serialize() { return serialize(array( $this->data, $this->extradata, )); } public function unserialize($data) { $orgdata = unserialize($data); $this->data = $orgdata[0]; $this->extradata = $orgdata[1]; } } class childobj extends parentobj { protected $moredata; public function __construct() { return parent::__construct(); } public function getMoreData(){ $this->moredata= array( 'more_data1','more_data2' ); } public function serialize() { return serialize(array( $this->moredata, parent::serialize(), )); } public function unserialize($data) { $orgdata = unserialize($data); $this->moredata = $orgdata[1]; parent::unserialize($orgdata[2]); } } class temp { protected $name; public function __construct($Name) { $this->name = $Name; } } $obj = new childobj(); $s = serialize($obj); echo 'first serialize: '; var_dump($s); $u = unserialize($s); echo 'first unserialize: '; var_dump($u); $u->getExtraData(); $u->getMoreData(); echo 'with extradata: '; var_dump($u); $s2 = serialize($u); echo 'second serialize: '; var_dump($s2); $u2 = unserialize($s2); echo 'second unserialize: '; var_dump($u2);
Output for 8.3.0 - 8.3.6
Deprecated: parentobj implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/PupgR on line 2 Deprecated: childobj implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/PupgR on line 38 first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Deprecated: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in /in/PupgR on line 32 Warning: Trying to access array offset on false in /in/PupgR on line 33 Warning: Trying to access array offset on false in /in/PupgR on line 34 first unserialize: object(childobj)#3 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" } with extradata: object(childobj)#3 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Deprecated: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in /in/PupgR on line 32 Warning: Trying to access array offset on false in /in/PupgR on line 33 Warning: Trying to access array offset on false in /in/PupgR on line 34 second unserialize: object(childobj)#4 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Deprecated: parentobj implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/PupgR on line 2 Deprecated: childobj implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/PupgR on line 38 first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Deprecated: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in /in/PupgR on line 32 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 33 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 34 first unserialize: object(childobj)#3 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" } with extradata: object(childobj)#3 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Deprecated: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in /in/PupgR on line 32 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 33 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 34 second unserialize: object(childobj)#4 (3) { ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" }
Output for 8.0.0 - 8.0.30
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 33 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 34 first unserialize: object(childobj)#3 (3) { ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Warning: Undefined array key 2 in /in/PupgR on line 67 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 33 Warning: Trying to access array offset on value of type bool in /in/PupgR on line 34 second unserialize: object(childobj)#4 (3) { ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL }
Output for 7.4.0 - 7.4.33
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 Notice: Trying to access array offset on value of type bool in /in/PupgR on line 33 Notice: Trying to access array offset on value of type bool in /in/PupgR on line 34 first unserialize: object(childobj)#3 (3) { ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 Notice: Trying to access array offset on value of type bool in /in/PupgR on line 33 Notice: Trying to access array offset on value of type bool in /in/PupgR on line 34 second unserialize: object(childobj)#4 (3) { ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL }
Output for 7.3.32 - 7.3.33
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" first unserialize: object(childobj)#3 (3) { ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" second unserialize: object(childobj)#4 (3) { ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 first unserialize: object(childobj)#3 (3) { ["moredata":protected]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata":protected]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data":protected]=> NULL ["extradata":"parentobj":private]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 second unserialize: object(childobj)#4 (3) { ["moredata":protected]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data":protected]=> NULL ["extradata":"parentobj":private]=> NULL }
Output for 5.2.0 - 5.2.17
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 first unserialize: object(childobj)#3 (3) { ["moredata:protected"]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data:protected"]=> NULL ["extradata:private"]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata:protected"]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data:protected"]=> NULL ["extradata:private"]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 second unserialize: object(childobj)#4 (3) { ["moredata:protected"]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data:protected"]=> NULL ["extradata:private"]=> NULL }
Output for 5.1.0 - 5.1.6
first serialize: string(112) "C:8:"childobj":92:{a:2:{i:0;N;i:1;s:68:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 Notice: unserialize(): Argument is not a string in /in/PupgR on line 32 first unserialize: object(childobj)#3 (3) { ["moredata:protected"]=> string(68) "a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;N;}" ["data:protected"]=> NULL ["extradata:private"]=> NULL } with extradata: object(childobj)#3 (3) { ["moredata:protected"]=> array(2) { [0]=> string(10) "more_data1" [1]=> string(10) "more_data2" } ["data:protected"]=> NULL ["extradata:private"]=> array(2) { [0]=> string(5) "data1" [1]=> string(5) "data2" } } second serialize: string(147) "C:8:"childobj":126:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:54:"a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" Notice: Undefined offset: 2 in /in/PupgR on line 67 Notice: unserialize(): Argument is not a string in /in/PupgR on line 32 second unserialize: object(childobj)#4 (3) { ["moredata:protected"]=> string(54) "a:2:{i:0;N;i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}" ["data:protected"]=> NULL ["extradata:private"]=> NULL }
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/PupgR on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/PupgR on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/PupgR on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/PupgR on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/PupgR on line 2
Process exited with code 255.

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