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<?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 = $orgdata[0]; parent::unserialize($orgdata[1]); } } 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 git.master, git.master_jit, rfc.property-hooks
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/YZsXd 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/YZsXd 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;}";}}" first unserialize: object(childobj)#3 (3) { ["data":protected]=> object(temp)#4 (1) { ["name":protected]=> string(15) "My private data" } ["extradata":"parentobj":private]=> NULL ["moredata":protected]=> NULL } with extradata: object(childobj)#3 (3) { ["data":protected]=> object(temp)#4 (1) { ["name":protected]=> string(15) "My private data" } ["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(198) "C:8:"childobj":177:{a:2:{i:0;a:2:{i:0;s:10:"more_data1";i:1;s:10:"more_data2";}i:1;s:104:"a:2:{i:0;O:4:"temp":1:{s:7:"*name";s:15:"My private data";}i:1;a:2:{i:0;s:5:"data1";i:1;s:5:"data2";}}";}}" second unserialize: object(childobj)#5 (3) { ["data":protected]=> object(temp)#6 (1) { ["name":protected]=> string(15) "My private data" } ["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" } }

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