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@ 2023-10-20T13:39:03Z

<?php

function method_a(&$links, ?bool $indexable)
{
    $links[] = [
        'indexable === ' => as_string($indexable),
        // very long list... and:
        ...(null !== $indexable ? ['indexable' => $indexable] : []),
    ];
}

function method_b(&$links, ?bool $indexable)
{
    $link = [
        'indexable === ' => as_string($indexable),
        // very long list... and:
    ];
    if (null !== $indexable) {
        $link['indexable'] = $indexable;
    }
    $links[] = $link;
}

function as_string($v)
{
    if (null === $v) {
        return 'null';
    }
    if (false === $v) {
        return 'false';
    }
    if (true === $v) {
        return 'true';
    }
}

$links = [];
method_a($links, null);
method_a($links, true);
method_a($links, false);
var_dump($links);

$links = [];
method_b($links, null);
method_b($links, true);
method_b($links, false);
var_dump($links);

Output for git.master, git.master_jit, rfc.property-hooks: array(3) { [0]=> array(1) { ["indexable === "]=> string(4) "null" } [1]=> array(2) { ["indexable === "]=> string(4) "true" ["indexable"]=> bool(true) } [2]=> array(2) { ["indexable === "]=> string(5) "false" ["indexable"]=> bool(false) } } array(3) { [0]=> array(1) { ["indexable === "]=> string(4) "null" } [1]=> array(2) { ["indexable === "]=> string(4) "true" ["indexable"]=> bool(true) } [2]=> array(2) { ["indexable === "]=> string(5) "false" ["indexable"]=> bool(false) } }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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