如何按阈值价格将样本名称名称为子数组密钥进行分组？

Question

我有一系列产品样本，我试图按阈值价格进行分组，其余样本将由样品阵列访问。

这是我要实现的目标：

[
  {
    "threshold": 20.00,
    "samples": [
      {
        ...
      }
    ]
  },
  {
    "threshold": 100.00,
    "samples": [
      {
        ...
      }
    ]
  }
]

正在使用的fetchsamples数据（在将其输入为输入之前）：例如

编辑：以及我 故意的。

array (size=7)
  0 => 
    array (size=9)
     "sampleid"=> "1234" (length=4)
     "productid"=> "11111" (length=5)
     "threshold"=> "20.00" (length=5)
     "stock"=> "345" (length=4)
     "product"=> "Beauty sample 1" (length=16)
        
  2 => 
    array (size=9)
     "sampleid"=> "5678" (length=4)
     "productid"=> "22222" (length=5)
     "threshold"=> "20.00" (length=5)
     "stock"=> "2449" (length=4)
     "product"=> "Beauty sample 2" (length=16)
        
   3 =>
    array (size=9)
     "sampleid"=> "999" (length=4)
     "productid"=> "33333" (length=5)
     "threshold"=> "100.00" (length=6)
     "stock"=> "345" (length=4)
     "product"=> "Beauty sample 3" (length=16)

和我的PHP代码在哪里发生分组的位置。这是在循环中采取$ sortedproducts的尝试，并且使用$ sortedproducts来输出此修改后的数据：

  $sortedProducts = array();

        foreach($fetchSamples as $samplekey => $sample)
        {

           $sortedProducts[$sample["threshold"]][] = $sample;
        }
       

但是，当我在foreach循环之后丢弃$ sortedproducts时，我已经获得了最接近该解决方案的方法： $ sortedProducts））;

Main issue is trying to get the results grouped by the threshold and trying to having it as the fields with an sub array of samples containing threshold identified by same key. 

[
    {
        "20.00": [
            {
                "sampleid": "1234",
                "productid": "111111",
                "threshold": "20.00",
                "stock": "345",
                "product": "Beauty sample 1",
            },
           
            {
                "sampleid": "5678",
                "productid": "222222",
                "threshold": "20.00",
                "stocklevel": "2449",
                "product": "Beauty sample 2",
            }
        ],
        "100.00": [
            {
                "sampleid": "9999",
                "productid": "33333",
                "threshold": "100.00",
                "stock": "345",
                "product": "Beauty sample 3",
            }
        ]
    }
]

Answer 1

你在寻找吗？

示例代码

$arrs = array(
'1' => array(
     "sampleid"=> "1234",
     "productid"=> "11111",
     "threshold"=> "20.00",
     "stock"=> "345",
     "product"=> "Beauty sample 1"
    ),
'2' => array(
    "sampleid"=> "5678",
    "productid"=> "22222",
    "threshold"=> "20.00",
    "stock"=> "2449",
    "product"=> "Beauty sample 2"
    ),
'3' => array(
    "sampleid"=> "999",
    "productid"=> "33333",
    "threshold"=> "100.00",
    "stock"=> "345",
    "product"=> "Beauty sample 3"
    )
);

$data = array();

foreach($arrs as $key => $value){
    $data[$value['threshold']]['threshold'] = $value['threshold'];
        $data[$value['threshold']]['samples'][] = array(
                'productid' => $value['productid'],
                'stock'     => $value['stock']
            );
}

print_r($data);

输出：

Array
(
[20.00] => Array
    (
        [threshold] => 20.00
        [samples] => Array
            (
                [0] => Array
                    (
                        [productid] => 11111
                        [stock] => 345
                    )

                [1] => Array
                    (
                        [productid] => 22222
                        [stock] => 2449
                    )

            )

    )

[100.00] => Array
    (
        [threshold] => 100.00
        [samples] => Array
            (
                [0] => Array
                    (
                        [productid] => 33333
                        [stock] => 345
                    )

            )

    )

)