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@ 2016-04-17T16:13:47Z

<?php
class Foo {
	private $bar = [];

	public function fill($limit = 100) {
		for ($i = 0; $i < $limit; $i++) {
			$this->bar[] = mt_rand($i, $limit);
		}
	}

	public function getEvenCounter() : Countable {
		return function () implements Countable {
			$counter = 0;
			foreach ($this->bar as $value) {
				if ($value % 2 === 0)
					$counter++;
			}
			return $counter;
		};
	}

	public function getOddCounter() : Countable {
		return function () implements Countable {
			$counter = 0;
			foreach ($this->bar as $value) {
				if ($value % 2 !== 0) {
					$counter++;
				}
			}
			return $counter;
		};
	}
}

$foo = new Foo();

$even = $foo->getEvenCounter();
$odd = $foo->getOddCounter();

$it = 0;

while (++$it<10) {
	$foo->fill(50);
	var_dump(
		count($even),
		count($odd));
}
?>

Output for git.master_jit, git.master: Parse error: syntax error, unexpected token "implements", expecting "{" in /in/b4AWq on line 12
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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