如何按閾值價格對樣本數組進行分組，樣本名稱作為子數組鍵？

Question

我有一個產品樣本數組，我試圖按閾值價格進行分組，其余樣本將由樣本數組訪問。

這就是我想要實現的目標：

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

編輯：以及我正在使用的 fetchSamples 數據（在它作為輸入輸入到 foreach 之前）：例如var_dump($sortedProducts)

此代碼按預期工作正常。

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)

還有我的 PHP 代碼，分組發生的地方。 這是在循環中采用 $sortedProducts 並使用 $sortedProducts 輸出此修改后的數據的嘗試：

  $sortedProducts = array();

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

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

然而，當我在 foreach 循環之后轉儲 $sortedProducts 時，我最接近這個解決方案：（例如dump($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

是你要找的嗎？

示例代碼

$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);

輸出：

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
                    )

            )

    )

)