PHP：从数组的重复记录中添加最小值

Question

我想删除数组中最高值的重复记录。

数组：

Array
(
    [0] => Array
        (
            [id] => 1
            [number] => 123
            [price] => 6
        )

    [1] => Array
        (
            [id] => 2
            [number] => 456
            [price] => 6
        )
    [2] => Array
        (
            [id] => 3
            [number] => 123
            [price] => 5
        )
)

预期结果：

Array
(
    [0] => Array
        (
            [id] => 2
            [number] => 456
            [price] => 6
        )
    [1] => Array
        (
            [id] => 3
            [number] => 123
            [price] => 5
        )
)

数字是重复字段，之后需要比较价格。哪个会更低，将被显示。其余的都应该删除。

我尝试了什么：

$lowest = min($myArray);

$result = array_filter($myArray, function($value, $key) use ($lowest) {
    return $value === $lowest;
}, ARRAY_FILTER_USE_BOTH);

我该怎么做？

---

更新：

@Daniel Dez 解决方案几乎可以正常工作。我用了他的第三种解决方案。但是，它应该是这样工作的。

例如：数字 123 是重复记录，现在它的最低价格是 2。那么，它应该显示 123 数字的数组元素的其余部分。

数组：

$data = [
    [
        "id" => 1,
        "number" => 123,
        "price" => 2,
    ],
    [
        "id" => 2,
        "number" => 456,
        "price" => 6,
    ],
    [
        "id" => 3,
        "number" => 123,
        "price" => 5,
    ],
    [
        "id" => 4,
        "number" => 123,
        "price" => 11,
    ],
    [
        "id" => 5,
        "number" => 456,
        "price" => 5,
    ],
    [
        "id" => 6,
        "number" => 123,
        "price" => 5,
    ]
];

预期输出：

Array
(
    [0] => Array
        (
            [id] => 1
            [number] => 123
            [price] => 2
        )

    [1] => Array
        (
            [id] => 2
            [number] => 456
            [price] => 5
        )

)

请帮帮我。

谢谢。

Answer 1

数据：

$numbers = array_unique(array_column($data, 'number'));

usort($data, function ($a, $b) {
    return $a['price'] - $b['price'];
});
$result = [];
foreach ($numbers as $number) {
    foreach ($data as $item) {
        if ($item['number'] == $number) {
            break;
        }
    }

    $result[] = $item;
}

print_r($result);