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@ 2021-01-14T07:39:55Z

<?php

$a =   [
            [
                'id' => 20,
                'created_at' => '2020-11-22',
                'updated_at' => '2020-11-22 11:16:22',
                'name' => 'AA',
            ],
            [
                'id' => 19,
                'created_at' => '2020-11-27 11:16:22',
                'updated_at' => null,
                'name' => 'BB',
            ]
    ];

$b =   [
            [
                'id' => 20,
                'created_at' => '2020-11-22 11:16:11',
                'updated_at' => '2020-11-22 11:16:22',
                'name' => 'AA',
            ],
            [
                'id' => 19,
                'created_at' => '2020-11-27 11:16:22',
                'updated_at' => null,
                'name' => 'BB',
            ]
    ];


function array_diff_by_keys(array $a, array $b, array $keys = null)
{
    if (empty($keys)) $keys = array_keys(reset($a));
    
    $compare = function ($x, $y) use ($keys) {
        foreach ($keys as $key) {
            $diff = $x[$key] <=> $y[$key];
            if ($diff) return $diff;
        }
        return $diff;
    };

    return array_udiff($a, $b, $compare);
}

print_r(array_diff_by_keys($a, $b));
print_r(array_diff_by_keys($a, $b, ['id', 'created_at', 'updated_at']));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => Array ( [id] => 20 [created_at] => 2020-11-22 [updated_at] => 2020-11-22 11:16:22 [name] => AA ) ) Array ( [0] => Array ( [id] => 20 [created_at] => 2020-11-22 [updated_at] => 2020-11-22 11:16:22 [name] => AA ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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