<?php

use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\PropertyNormalizer;

$jsonEncoder = new JsonEncoder();
$normalizer = new PropertyNormalizer();

$serializer = new Serializer([$normalizer], [$jsonEncoder]);

$array = ['id' => 1, 'foo' => 'bar'];

class Foo
{
    private $id;
    private $foo;
}

$serialized = $serializer->serialize($array, 'json');

$foo = new Foo();

$unserialized = $serializer->deserialize(
    $serialized,
    Foo::class,
    'json', 
    [
        'object_to_populate' => $foo,
    ]
);

dump(
    $unserialized === $foo,
    $unserialized
);

^ true

^ Foo {#1397

  -id: 1

  -foo: "bar"

}

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PHP 8.3, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8