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@ 2021-07-31T04:26:01Z

<?php

$payloads = [
    'a' => [null, null, null, null, null],
    'b' => [null, null, 1, null, null]
];

foreach ($payloads as $key => $payload) {
    printf(
        "%s: %s, %s, %s\n",
        $key,
        var_export(
            array_reduce(
                $payload,
                function ($acc, $value) {
                    return $acc && $value === null;
                },
                true
            ),
            true
        ),
        var_export(
            !array_filter(
                $payload,
                function ($value) {
                    return $value !== null;
                }
            ),
            true
        ),
        var_export(
            $payload === array_filter($payload, 'is_null'),
            true
        )
    );
}

Output for git.master, git.master_jit, rfc.property-hooks: a: true, true, true b: false, false, 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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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