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@ 2019-09-01T19:11:11Z

<?php
$foods = [
    [
        'foodType' => 'fruits',
        'itemID' => 1,
        'itemName' => 'apple',
    ],

    [
        'foodType' => 'fruits',
        'itemID' => 2,
        'itemName' => 'banana',
    ],

    [
        'foodType' => 'veggies',
        'itemID' => 3,
        'itemName' => 'carrot',
    ],

    [
        'foodType' => 'veggies',
        'itemID' => 4,
        'itemName' => 'broccoli',
    ]

];

$grouped_foods = [];
$groupByColumn = 'foodType';

array_filter($foods, function ($foodItem) use(&$grouped_foods, $groupByColumn) {
    $grouped_foods[$foodItem[$groupByColumn]][] = array_filter($foodItem, function ($key) use($groupByColumn) {
        return $key != $groupByColumn;
    }, ARRAY_FILTER_USE_KEY);
});


echo "<pre>";
print_R($grouped_foods);
echo "</pre>";

Output for git.master, git.master_jit, rfc.property-hooks: <pre>Array ( [fruits] => Array ( [0] => Array ( [itemID] => 1 [itemName] => apple ) [1] => Array ( [itemID] => 2 [itemName] => banana ) ) [veggies] => Array ( [0] => Array ( [itemID] => 3 [itemName] => carrot ) [1] => Array ( [itemID] => 4 [itemName] => broccoli ) ) ) </pre>

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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