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@ 2019-11-27T13:05:36Z

<?php

$arr1 = [
    [
        "id" => '1',
        "order" => '123238'
    ],
    [
        "id" => '2',
        "order" => '33278'
    ],
    [
        "id" => '3',
        "order" => '8892372'
    ]
];

$arr2 = [
    [
        "id" => '1',
        "order" => '349483'
    ],
    [
        "id" => '2',
        "order" => '9837283'
    ],
    [
        "id" => '3',
        "order" => '33278'
    ]
];

$intersect = array_uintersect($arr1, $arr2, function ($a, $b) {
    return strcmp($a['order'], $b['order']);
});

print_r($intersect);

$notInArr1 = array_uintersect($arr1, $arr2, function ($a, $b) {
    if ($a["order"] === $b["order"]) return -1;
    if ($a["order"] > $b["order"]) return 1;
    return 0;
});

print_r($notInArr1);

$notInArr2 = array_uintersect($arr2, $arr1, function ($a, $b) {
    if ($a["order"] === $b["order"]) return -1;
    if ($a["order"] > $b["order"]) return 1;
    return 0;
});

print_r($notInArr2);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [1] => Array ( [id] => 2 [order] => 33278 ) ) Array ( [0] => Array ( [id] => 1 [order] => 123238 ) [2] => Array ( [id] => 3 [order] => 8892372 ) ) Array ( [0] => Array ( [id] => 1 [order] => 349483 ) [1] => Array ( [id] => 2 [order] => 9837283 ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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