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@ 2023-08-28T00:52:16Z

<?php

function generateProductArray($database) {
    return array_reduce($database, function ($result, $entry) {
        [$model, $storage, $color] = array_values($entry);

        $result[$model][$storage][$color] = ($result[$model][$storage][$color] ?? 0) + 1;

        return $result;
    }, []);
}

// Example data from the database
$database = array(
    array('model' => 'iPhone 14 Pro', 'storage' => '128gb', 'color' => 'Black'),
    array('model' => 'iPhone 14 Pro', 'storage' => '256gb', 'color' => 'Blue'),
    array('model' => 'iPhone 14 Pro', 'storage' => '128gb', 'color' => 'Black'),
    array('model' => 'iPhone 14 Pro', 'storage' => '256gb', 'color' => 'Red'),
    array('model' => 'iPhone 14 Pro', 'storage' => '256gb', 'color' => 'Red'),
);

$resultArray = generateProductArray($database);
print_r($resultArray);

Output for git.master_jit, rfc.property-hooks: Array ( [iPhone 14 Pro] => Array ( [128gb] => Array ( [Black] => 2 ) [256gb] => Array ( [Blue] => 1 [Red] => 2 ) ) )
Output for git.master: /bin/php-git-master: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-git-master) /bin/php-git-master: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-git-master)
Process exited with code 1.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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