<?php
function doSerialize($obj) {
$data = $obj->__serialize();
// produce a string out of the data array
return $data;
}
function doUnserialize($class, $data) {
// $data will contain a string with all information about class, self-references etc
$new = (new ReflectionClass($class))->newInstanceWithoutConstructor();
// this happens before calling __unserialize internally for self refferences
$data['selfref'] = $new;
return $class::__unserialize($new, $data);
}
class Test {
public $prop;
public $selfref;
function __construct() {
$this->prop = 'prop';
$this->selfref = $this;
}
public function __serialize(): array
{
return ['prop' => $this->prop];
}
public static function __unserialize(self $new, array $data): self
{
$new->prop = $data['prop'];
$new->selfref = $data['selfref'];
return $new;
}
}
class Test2 {
public $prop;
public $selfref;
function __construct() {
$this->prop = 'prop';
$this->selfref = $this;
}
public function __serialize(): array
{
return ['prop' => $this->prop];
}
public static function __unserialize(self $new, array $data): self
{
$new = (new ReflectionClass(self::class))->newInstanceWithoutConstructor();
$new->prop = $data['prop'];
$new->selfref = $new;
return $new;
}
}
$a1 = new Test;
$adata = doSerialize($a1);
$a2 = doUnserialize('Test', $adata);
var_dump($a2, $a2 === $a2->selfref);
$b1 = new Test2;
$bdata = doSerialize($b1);
$b2 = doUnserialize('Test2', $bdata);
var_dump($b2, $b2 === $b2->selfref);
Fatal error: Method Test::__unserialize() must take exactly 1 argument in /in/AbQ2s on line 32
Process exited with code 255.
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
Fatal error: Method Test::__unserialize() must take exactly 1 argument in /in/AbQ2s on line 32
Process exited with code 255.