php-查找重复项并按数组属性排序[关闭]

我有一个庞大的产品关联阵列。我想看看有没有 复制 产品然后获得产品 .

我可以使用 array\u唯一 array\u count\u值 查找重复记录,但我不知道如何处理排序部分。

阵列属性:

• 产品id(唯一)
• 标题
• 价格

样本数据

Array
(
    [0] => Array
        (
            [product_id] => 1111
            [title] => Product 1
            [price] => 140
        )

    [1] => Array
        (
            [product_id] => 2222
            [title] => Product 2
            [price] => 66
        )

    [2] => Array
        (
            [product_id] => 1111
            [title] => Product 1 A
            [price] => 123
        )

    [3] => Array
        (
            [product_id] => 3333
            [title] => Product 3
            [price] => 37.4
        )

    [4] => Array
        (
            [product_id] => 4444
            [title] => Product 4
            [price] => 10.5
        )

)

产品1是重复的,因此产品1将有一个记录,并且应保留低价格。

输出应类似

Array
(
    [0] => Array
        (
            [product_id] => 1111
            [title] => Product 1
            [price] => 123
        )

    [1] => Array
        (
            [product_id] => 2222
            [title] => Product 2
            [price] => 66
        )  

    [2] => Array
        (
            [product_id] => 3333
            [title] => Product 3
            [price] => 37.4
        )

    [3] => Array
        (
            [product_id] => 4444
            [title] => Product 4
            [price] => 10.5
        )

)