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@ 2025-03-26T18:37:37Z

<?php

$arr = [
    "S10.G00.00.001,'www.mywebsite.com'",
    "S10.G00.00.002,'Company name'",
    "S10.G00.00.003,'v2.01'",
    "S10.G00.01.001,'492484944'",
    "S10.G00.01.002,'00029'",
    "S10.G00.01.003,'First name'",
    "S10.G00.01.004,'120 R CHARLES'",
    "S10.G00.01.005,'92200'",
    "S10.G00.02.001,'01'",
    "S10.G00.02.002,'first name'",
    "S10.G00.02.004,'email@gmail.com'",
    "S10.G00.02.005,'0750000000'",
    "S20.G00.05.001,'01'",
    "S20.G00.05.002,'01'",
    "S20.G00.05.003,'11'",
    "S20.G00.05.004,'5'",
    "S20.G00.05.010,'01'",
    "S10.G00.01.001,'492484944'",
    "S10.G00.01.002,'00029'",
    "S10.G00.01.003,'Last name'"
];

$result = [];
$previousKey = null;
$index = -1;

foreach ($arr as $item) {
    $currentKey = substr($item, 0, 10);
    if ($previousKey !== $currentKey) {
        $index++;
        $previousKey = $currentKey; 
    }
    
    $result[$index][$currentKey][] = $item;
}

print_r($result);

Output for git.master, git.master_jit: Array ( [0] => Array ( [S10.G00.00] => Array ( [0] => S10.G00.00.001,'www.mywebsite.com' [1] => S10.G00.00.002,'Company name' [2] => S10.G00.00.003,'v2.01' ) ) [1] => Array ( [S10.G00.01] => Array ( [0] => S10.G00.01.001,'492484944' [1] => S10.G00.01.002,'00029' [2] => S10.G00.01.003,'First name' [3] => S10.G00.01.004,'120 R CHARLES' [4] => S10.G00.01.005,'92200' ) ) [2] => Array ( [S10.G00.02] => Array ( [0] => S10.G00.02.001,'01' [1] => S10.G00.02.002,'first name' [2] => S10.G00.02.004,'email@gmail.com' [3] => S10.G00.02.005,'0750000000' ) ) [3] => Array ( [S20.G00.05] => Array ( [0] => S20.G00.05.001,'01' [1] => S20.G00.05.002,'01' [2] => S20.G00.05.003,'11' [3] => S20.G00.05.004,'5' [4] => S20.G00.05.010,'01' ) ) [4] => Array ( [S10.G00.01] => Array ( [0] => S10.G00.01.001,'492484944' [1] => S10.G00.01.002,'00029' [2] => S10.G00.01.003,'Last name' ) ) )

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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