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@ 2021-08-04T23:01:45Z

<?php

$array = [
    [
        "partner_id" => "10017",
        "store_id" => "1000",
        "item_type_id" => "2",
        "value" => "58",
        "category" => "1"
    ],
    [
        "partner_id" => "10017",
        "store_id" => "1000",
        "item_type_id" => "1",
        "value" => "63",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1000",
        "item_type_id" => "3",
        "value" => "29",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1000",
        "item_type_id" => "2",
        "value" => "58",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1001",
        "item_type_id" => "1",
        "value" => "65",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1001",
        "item_type_id" => "2",
        "value" => "58",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1001",
        "item_type_id" => "3",
        "value" => "29",
        "category" => "1"
    ],
    [
        "partner_id" => "0",
        "store_id" => "1000",
        "item_type_id" => "1",
        "value" => "65",
        "category" => "1"
    ]
];

$result = [];
foreach ($array as $row) {
    if ($row['partner_id'] || !isset($result[$row['store_id']][$row['item_type_id']])) {
        $result[$row['store_id']][$row['item_type_id']][$row['partner_id']] = $row;
    }
}
var_export(array_map(function($row) { return array_merge(...$row); }, $result));

Output for git.master, git.master_jit, rfc.property-hooks: array ( 1000 => array ( 0 => array ( 'partner_id' => '10017', 'store_id' => '1000', 'item_type_id' => '2', 'value' => '58', 'category' => '1', ), 1 => array ( 'partner_id' => '10017', 'store_id' => '1000', 'item_type_id' => '1', 'value' => '63', 'category' => '1', ), 2 => array ( 'partner_id' => '0', 'store_id' => '1000', 'item_type_id' => '3', 'value' => '29', 'category' => '1', ), ), 1001 => array ( 0 => array ( 'partner_id' => '0', 'store_id' => '1001', 'item_type_id' => '1', 'value' => '65', 'category' => '1', ), 1 => array ( 'partner_id' => '0', 'store_id' => '1001', 'item_type_id' => '2', 'value' => '58', 'category' => '1', ), 2 => array ( 'partner_id' => '0', 'store_id' => '1001', 'item_type_id' => '3', 'value' => '29', 'category' => '1', ), ), )

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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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