PHP 配列のソート: 単一次元から多次元までの詳細な調査

 "iPhone",
    "Samsung" => "Galaxy",
    "Google" => "Pixel",
);

asort($products);

print_r($products);

Array
(
    [Apple] => iPhone
    [Google] => Pixel
    [Samsung] => Galaxy
)

function array_multisort($array, $columns) {
    $temp = [];
    foreach($array as $k => $v) {
        $temp[$k] = [];
        foreach($columns as $key) {
            $temp[$k][$key] = $v[$key];
        }
    }
    array_multisort($temp, SORT_ASC);
    foreach($temp as $k => $v) {
        foreach($columns as $key) {
            $array[$k][$key] = $v[$key];
        }
    }
    return $array;
}

 "iPhone",
        "price" => 1000,
    ),
    array(
        "name" => "Galaxy",
        "price" => 800,
    ),
    array(
        "name" => "Pixel",
        "price" => 900,
    ),
);

array_multisort($products, ['name', 'price']);

print_r($products);

Array
(
    [0] => Array
        (
            [name] => Galaxy
            [price] => 800
        )

    [1] => Array
        (
            [name] => iPhone
            [price] => 1000
        )

    [2] => Array
        (
            [name] => Pixel
            [price] => 900
        )
)