Online PHP editor | rfc for K9ZKM

@ 2026-05-31T13:14:33Z

<?php
class StrWrap {
    public string $s = '';
}

// 1. On crée notre objet StrWrap principal ($a)
$a = new StrWrap();

// 2. On construit le tableau piégé
// On a besoin que $a !== $b, $b !== $c, et que prev($data) revienne sur $a
// En insérant l'objet $a, puis une valeur $b, puis en reliant le pointeur via 'r:'
$data = [
    0 => $a,
    1 => "valeur_b",
    2 => &$a // Utilisation de la référence pour forcer l'identité d'instance
];

// On sérialise le tableau
$serialized = serialize($data);

// Subtilité : Le challenge exige "str_contains($raw, 'r:')" (référence d'objet minuscule)
// Si PHP génère un 'R:' (référence par pointeur), on s'assure de sa validité.
// Pour forcer un 'r:', on duplique l'objet proprement en mémoire :
$data_correct = array();
$data_correct[0] = $a;
$data_correct[1] = "dummy_b";
$data_correct[2] = $a; // Ici PHP va générer un 'r:2' (référence à l'objet 0)

$payload = base64_encode(serialize($data_correct));
echo $payload;

Output for git.master, git.master_jit: YTozOntpOjA7Tzo3OiJTdHJXcmFwIjoxOntzOjE6InMiO3M6MDoiIjt9aToxO3M6NzoiZHVtbXlfYiI7aToyO3I6Mjt9

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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