Online PHP editor | rfc for FOt6M

@ 2024-10-15T22:22:50Z

<?php

$array = [
    [
        "id" => 96,
        "shipping_no" => "212755-1",
        "part_no" => "reterty",
        "description" => "tyrfyt",
        "packaging_type" => "PC"
    ],
    [
        "id" => 96,
        "shipping_no" => "212755-1",
        "part_no" => "dftgtryh",
        "description" => "dfhgfyh",
        "packaging_type" => "PC"
    ],
    [
        "id" => 97,
        "shipping_no" => "212755-2",
        "part_no" => "ZeoDark",
        "description" => "s%c%s%c%s",
        "packaging_type" => "PC"
    ]
];

function array_group_by($arr, array $keys) {
    if (!is_array($arr)) {
        trigger_error('array_group_by(): The first argument should be an array', E_USER_ERROR);
    }
    if (count($keys) == 0) {
        trigger_error('array_group_by(): The Second argument Array can not be empty', E_USER_ERROR);
    }

    // Load the new array, splitting by the target key
    $grouped = [];
    foreach ($arr as $value) {
        $grouped[$value[$keys[0]]][] = $value;
    }

    // Recursively build a nested grouping if more parameters are supplied
    // Each grouped array value is grouped according to the next sequential key
    if (count($keys) > 1) {
        foreach ($grouped as $key => $value) {
            $parms = array_merge([$value], [array_slice($keys, 1, count($keys))]);
           $grouped[$key] = call_user_func_array('array_group_by', $parms);

        }
    }
    return $grouped;
}
var_export(
    array_group_by($array, ['id', 'shipping_no'])
);

Output for git.master_jit, git.master: array ( 96 => array ( '212755-1' => array ( 0 => array ( 'id' => 96, 'shipping_no' => '212755-1', 'part_no' => 'reterty', 'description' => 'tyrfyt', 'packaging_type' => 'PC', ), 1 => array ( 'id' => 96, 'shipping_no' => '212755-1', 'part_no' => 'dftgtryh', 'description' => 'dfhgfyh', 'packaging_type' => 'PC', ), ), ), 97 => array ( '212755-2' => array ( 0 => array ( 'id' => 97, 'shipping_no' => '212755-2', 'part_no' => 'ZeoDark', 'description' => 's%c%s%c%s', 'packaging_type' => 'PC', ), ), ), )

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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