Online PHP editor | rfc for 2m3Jb

@ 2025-09-04T14:11:40Z

<?php

class Item
{
    public ?array $children = [];

    public ?Item $parent = null;

    public function addChild(Item $item): Item
    {
        $item->setParent($this);
        $this->children[] = $item;

        return $this;
    }

    public function setParent(Item $parent): void
    {
        $this->parent = $parent;
    }

    public function __sleep()
    {
        return array_keys(get_object_vars($this));
    }
}

class Tree
{
    public array $items = [];

    public function addItem(Item $item): self
    {
        $this->items[] = $item;

        return $this;
    }

    public function __clone()
    {
        foreach ($this->items as $key => $item) {
            $clone = clone $item;
            $this->items[$key] = $clone;
        }
    }
}

class Forest
{
    public Tree $first;
    public Tree $second;

    public function __construct(Tree $first, Tree $second)
    {
        $this->first = $first;
        $this->second = $second;
    }
}


$charge = new Item();

$baseProduct = new Item();
$base = new Tree();
$base->addItem($baseProduct);
$baseProduct->addCHild($charge);

$second = clone $base;

$data = new Forest($second, $base);

assert(is_array($data->second->items[0]->children));

$data = unserialize(serialize($data));

assert(is_array($data->second->items[0]->children));

echo 'OK';

Output for git.master_jit, git.master, rfc.property-hooks: Fatal error: Uncaught AssertionError: assert(is_array($data->second->items[0]->children)) in /in/2m3Jb:76 Stack trace: #0 /in/2m3Jb(76): assert(false, 'assert(is_array...') #1 {main} thrown in /in/2m3Jb on line 76
Process exited with code 255.

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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