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@ 2020-06-03T12:34:54Z

<?php

$frontendData = [
  'datasheet' => [
    'Name_1_balance0'    => 1, // Data block 1
    'Name_1_balance2'    => 3, // Data block 1
    'Name_1_balance13'    => 4, // Data block 1
    'Name_1_balance1'    => 2, // Data block 1
    'Name_2_balance0'    => 5, // Data block 2
    'Name_2_balance2'    => 7, // Data block 2
    'Name_2_balance3'    => 8, // Data block 2
    'Name_2_balance1'    => 6, // Data block 2
  ]
];

uksort($frontendData['datasheet'], 'strnatcmp');
$result = array();

foreach ($frontendData['datasheet'] as $key => $balance) {
    preg_match('/^(\w+)_balance(\d+)$/', $key, $match);
    $result[$match[1]][0] = $match[1];
    $result[$match[1]][1]['balance'][$match[2]] = $balance;
}
$result = array('datasheet' => array_values($result));
print_r($result);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [datasheet] => Array ( [0] => Array ( [0] => Name_1 [1] => Array ( [balance] => Array ( [0] => 1 [1] => 2 [2] => 3 [13] => 4 ) ) ) [1] => Array ( [0] => Name_2 [1] => Array ( [balance] => Array ( [0] => 5 [1] => 6 [2] => 7 [3] => 8 ) ) ) ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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