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@ 2018-08-10T21:05:25Z

<?php

$Arr1=Array
    (
        0 => Array
        (
            "id" => "4123",
            "test_number" => "1",
            "sat_total" => "1050"
        ),
        1 => Array
        (
            "id" => "4123",
            "test_number" => "2",
            "sat_total" => "1130"
        ),
        2 => Array
        (
            "id" => "4123",
            "test_number" => "3",
            "sat_total" => "1120"
        ),
        3 => Array
        (
            "id" => "5555",
            "test_number" => "1",
            "sat_total" => "1130"
        ),
        4 => Array
        (
            "id" => "5555",
            "test_number" => "2",
            "sat_total" => "1160"
        )
    );

$ids = array_column($Arr1, "id");
$sat = array_column($Arr1, "sat_total");

Foreach(array_unique($ids) as $id){
    $new[$id] = ["id" => $id];
    $tmp = array_values(array_intersect_key($sat,array_intersect_key($Arr1, array_intersect($ids, [$id]))));
    For($i=1;$i<=count($tmp);$i++) $new[$id]["Score" . $i] = $tmp[$i-1];
}
Var_dump($new);

Output for git.master_jit, git.master, rfc.property-hooks: array(2) { [4123]=> array(4) { ["id"]=> string(4) "4123" ["Score1"]=> string(4) "1050" ["Score2"]=> string(4) "1130" ["Score3"]=> string(4) "1120" } [5555]=> array(3) { ["id"]=> string(4) "5555" ["Score1"]=> string(4) "1130" ["Score2"]=> string(4) "1160" } }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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