列的2D数组的组行，并在每个组中创建子阵列[封闭]

Question

$MainArray = Array
(
    [0] => Array
        (
            [Job_Name] => WXYZ
            [Quantity] => 1000
            [Machine_Name] => Machine1
            [Start_Date] => 2014-07-30 00:00:00
            [Completion_Date] => 2014-08-02 00:00:00
            [Labor] => 4
        )
    [1] => Array
        (
            [Job_Name] => ABCD
            [Quantity] => 1500
            [Machine_Name] => Machine2
            [Start_Date] => 2014-08-08 00:00:00
            [Completion_Date] => 2014-08-14 00:00:00
            [Labor] => 2
        )
    [2] => Array
        (
            [Job_Name] => BCDA
            [Quantity] => 1200
            [Machine_Name] => Machine1
            [Start_Date] => 2014-08-02 00:00:00
            [Completion_Date] => 2014-08-07 00:00:00
            [Labor] => 1
        )
 )

我想使用此信息创建一个看起来像这样的新3维数组。

$ConvertedArray = Array
(
    [Machine1] => Array
        (
            [0] => Array
               (
                  [Job_Name] => WXYZ
                  [Quantity] => 1000
                  [Start_Date] => 2014-07-30 00:00:00
                  [Completion_Date] => 2014-08-02 00:00:00
                  [Labor] => 4
               )
            [1] => Array
               (
                  [Job_Name] => BCDA
                  [Quantity] => 1200
                  [Start_Date] => 2014-08-02 00:00:00
                  [Completion_Date] => 2014-08-07 00:00:00
                  [Labor] => 1
               )
         )
      [Machine2] => Array
        (
            [0] => Array
               (
                  [Job_Name] => ABCD
                  [Quantity] => 1500
                  [Machine_Name] => Machine2
                  [Start_Date] => 2014-08-08 00:00:00
                  [Completion_Date] => 2014-08-14 00:00:00
                  [Labor] => 2
               )
         )   
)

请对此提供任何帮助。我坚持一些东西，需要弄清楚如何使用此原始数组来创建新数组。因此，基本上，我将每台机器中的所有作业分组在一起，这些作业的钥匙取决于它们在原始数组中的状态。因此，如果原始数组在密钥2上有工作，并且没有其他作业在该机器上具有更高的密钥，那么它将成为该作业的键0，并使用该计算机名称创建一个新键。

使用以下代码： -

$result = [];
foreach($MainArray as $record){
 $result[$record['Machine_Name']][] = $record;
}

Answer 1