Online PHP editor | rfc for eRYIJ

@ 2026-01-09T08:46:18Z

<?php

class ArrayMap implements \Iterator
{
	public function __construct(private array $array)
	{
	}

	public function current(): mixed
	{
		return current($this->array);
	}

	public function next(): void
	{
		next($this->array);
	}

	public function key(): int|string|null
	{
		return key($this->array);
	}

	public function valid(): bool
	{
		return key($this->array) !== null;
	}

	public function rewind(): void
	{
		reset($this->array);
	}
}

class Aggregate implements \IteratorAggregate
{
	public function __construct(private array $array)
	{
	}

	public function getIterator(): Traversable
	{
		return new ArrayMap($this->array);
	}
}

class Y
{
}
class Z
{
}

$_1 = new Aggregate([Z::class => Z::class,]);
var_dump(1);

$_2 = [...iterator_to_array($_1, true)];
var_dump(2);

$_3 = [...$_2, Y::class => Z::class];
var_dump(3);

$_4 = new Aggregate($_3);
var_dump(4);

[...$_4];
var_dump(5);

Output for git.master_jit, git.master: int(1) int(2) int(3) int(4) int(5)

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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