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@ 2022-08-23T23:45:39Z

<?php

$array1 = [
    [
        'Firepack_sn' => '20012205',
        'Installation_Date' => '',
        'Type' => 'EH',
        'Capacity_m3h' => '81',
        'Pressure_bar' => '3,4',
        'Rpm' => '2930',
        'Power_kw' => '72',
    ],
    [
        'Firepack_sn' => '20023901',
        'Installation_Date' => '',
        'Type' => 'DH',
        'Capacity_m3h' => '195',
        'Pressure_bar' => '4,2',
        'Rpm' => '2000',
        'Power_kw' => '72',
    ],
];

$array2 = [
    [
        'user_id' => '40009',
        'firepack_id' => '20012205',
        'activated' => '1',
    ],
    [
        'user_id' => '40009',
        'firepack_id' => '21020393',
        'activated' => '0',
    ],
];

var_export(
    array_uintersect(
        $array1,
        $array2,
        fn($a, $b) =>
            ($a['Firepack_sn'] ?? $a['firepack_id'])
            <=>
            ($b['Firepack_sn'] ?? $b['firepack_id'])
    )
);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => array ( 'Firepack_sn' => '20012205', 'Installation_Date' => '', 'Type' => 'EH', 'Capacity_m3h' => '81', 'Pressure_bar' => '3,4', 'Rpm' => '2930', 'Power_kw' => '72', ), )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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