多维数组按 DESC 顺序重新排列，内部多维数组在 DESC 中，但外部父数组不起作用

Question

Working child array is here with parent multidimensional array.Here child array is run as in DESC order.

 [
    {
        "variation_id": "23",
        "variation_price": "200.00"
    },
    {
        "variation_id": "25",
        "variation_price": "100.00"
    }
],
[
    {
        "variation_id": "31",
        "variation_price": "150.00"
    },
    {
        "variation_id": "30",
        "variation_price": "80.00"
    }
],
[
    {
        "variation_id": "45",
        "variation_price": "300.00"
    },
    {
        "variation_id": "44",
        "variation_price": "200.56"
    }
]

And would like to work as in order like , Thank means whole multidimensional ( parent and child array ) work in DESC order.

[
    [
        {
            "variation_id": "45",
            "variation_price": "300.00"
        },
        {
            "variation_id": "44",
            "variation_price": "200.56"
        }
    ],
    [
        {
            "variation_id": "23",
            "variation_price": "200.00"
        },
        {
            "variation_id": "25",
            "variation_price": "100.00"
        }
    ],
    [
        {
            "variation_id": "31",
            "variation_price": "150.00"
        },
        {
            "variation_id": "30",
            "variation_price": "80.00"
        }
    ]

]

I have written query for first to get child array as DESC order to get results for Query ->

$response  = $find_variation_array;
$sort = array();
foreach($response as $k=>$v) {
    $sort['variation_price'][$k] = $v['variation_price'];
}
array_multisort($sort['variation_price'], SORT_DESC, $response);

Not working for second steps , which is parent array .
Can any one kindly share me any idea how to get whole parent and child multidimensional array in DESC order more. Thanks in advance for your kind knowledge share.

Answer 1

Assuming your array is like this:

[ 
    [
        [
            "variation_id" => "23",
            "variation_price" => "200.00"
        ],
        [
            "variation_id" => "25",
            "variation_price" => "100.00"
        ]
    ],
    [
        [
            "variation_id" => "31",
            "variation_price" => "150.00"
        ],
        [
            "variation_id" => "30",
            "variation_price" => "80.00"
        ]
    ],
    [
        [
            "variation_id" => "45",
            "variation_price" => "300.00"
        ],
        [
            "variation_id" => "44",
            "variation_price" => "200.56"
        ]
    ]
]

Then it may be an way to solve:

$test_array = 
[ 
    [
        [
            "variation_id" => "23",
            "variation_price" => "200.00"
        ],
        [
            "variation_id" => "25",
            "variation_price" => "100.00"
        ]
    ],
    [
        [
            "variation_id" => "31",
            "variation_price" => "150.00"
        ],
        [
            "variation_id" => "30",
            "variation_price" => "80.00"
        ]
    ],
    [
        [
            "variation_id" => "45",
            "variation_price" => "300.00"
        ],
        [
            "variation_id" => "44",
            "variation_price" => "200.56"
        ]
    ]
];


$sort_array_order = array();
foreach ($test_array as $test_key => $test_value) {

    $temp_sumation_of_variation_price = 0;

    foreach ($test_value as $key => $value) {
        $temp_sumation_of_variation_price += $value['variation_price'];
    }

    $sort_array_order[] = $temp_sumation_of_variation_price;
}

array_multisort($sort_array_order, SORT_DESC, $test_array);

echo "<pre>";print_r($test_array);echo "</pre>";