<?php
class User
{
public $name = "admin";
}
class UserCouple implements Serializable
{
public $user1;
public $user2;
public function serialize()
{
return serialize(array(42, serialize(array($this->user1, $this->user2))));
}
public function unserialize($serialized)
{
list($_, $subSerialized) = unserialize($serialized);
list($this->user1, $this->user2) = unserialize($subSerialized);
}
}
$user = new User();
$couple = new UserCouple();
$couple->user1 = $user;
$couple->user2 = $user;
var_dump($couple);
var_dump(unserialize(serialize($couple)));
Deprecated: UserCouple 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/BXuv8 on line 7
object(UserCouple)#2 (2) {
["user1"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
["user2"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
}
Warning: unserialize(): Error at offset 55 of 56 bytes in /in/BXuv8 on line 20
object(UserCouple)#3 (2) {
["user1"]=>
NULL
["user2"]=>
NULL
}
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Deprecated: UserCouple 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/BXuv8 on line 7
object(UserCouple)#2 (2) {
["user1"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
["user2"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
}
Warning: unserialize(): Error at offset 55 of 56 bytes in /in/BXuv8 on line 20
object(UserCouple)#3 (2) {
["user1"]=>
NULL
["user2"]=>
NULL
}
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Deprecated: UserCouple 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/BXuv8 on line 7
object(UserCouple)#2 (2) {
["user1"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
["user2"]=>
object(User)#1 (1) {
["name"]=>
string(5) "admin"
}
}
Notice: unserialize(): Error at offset 55 of 56 bytes in /in/BXuv8 on line 20
object(UserCouple)#3 (2) {
["user1"]=>
NULL
["user2"]=>
NULL
}