Question

我很努力＆＃39;使用以下数组来检索唯一值。该数组来自嵌套产品组装结构。尝试了几种技术，但还没有结果。也许有人可以帮我这个？提前谢谢！


Array
(
    [0] => Array
        (
            [product_ID] => 1
            [amount] => 2.00
        )

[1] => Array
    (
        [product_ID] => 1
        [amount] => 2.00
    )

[2] => Array
    (
        [product_ID] => 1
        [amount] => 2.00
    )

[3] => Array
    (
        [product_ID] => 5
        [amount] => 6.00
    )


)

目标是检索一个数组，如：

[1] => Array ( [product_ID] => 1 [amount] => 2.00 ) [2] => Array ( [product_ID] => 1 [amount] => 2.00 ) [3] => Array ( [product_ID] => 5 [amount] => 6.00 )

Answer 1

最简单的可能是提取数据索引product_ID，因为索引是唯一的：

$result = array_column($array, null, 'product_ID');

来自多维数组的{php}唯一值

1 个答案: