如果父ID相同，則合併多維數組然後合併子數據

Question

我想將數組轉換爲數組。

標準是，

如果projectId同一然後存儲下項目的數組，它包含作爲projectId關鍵項目相同的id數據。

Array 
(
    [0] => Array 
     (
      [PMST] => Array 
       (
        [id] => 4 
        [project_id] => 25 
        [task_name] => Final task 3 
        [start_date] => 2016-06-21 00:00:00 
        [end_date] => 2016-06-29 00:00:00 
       ) 

      [PMSP] => Array 
       (
        [id] => 25 
        [project_name] => Project 3 
        [start_date] => 2016-06-01 00:00:00 
        [end_date] => 2016-06-04 00:00:00 
       ) 

     ) 

    [1] => Array 
     (
      [PMST] => Array 
       (
        [id] => 9 
        [project_id] => 28 
        [task_name] => Task Test 333 edit 
        [start_date] => 2016-06-19 00:00:00 
        [end_date] => 2016-06-29 00:00:00 
       ) 

      [PMSP] => Array 
       (
        [id] => 28 
        [project_name] => Project Employee Test 
        [start_date] => 2016-06-10 00:00:00 
        [end_date] => 2016-06-30 00:00:00 
       ) 

     ) 

    [2] => Array 
     (
      [PMST] => Array 
       (
        [id] => 1 
        [project_id] => 28 
        [task_name] => Task 1 
        [start_date] => 2016-06-01 00:00:00 
        [end_date] => 2016-06-04 00:00:00 
       ) 

      [PMSP] => Array 
       (
        [id] => 28 
        [project_name] => Project Employee Test 
        [start_date] => 2016-06-10 00:00:00 
        [end_date] => 2016-06-30 00:00:00 
       ) 
     ) 
) 

慾望輸出

Array 
(
    [25] => Array 
     (
     [PMSP] => Array 
       (
        [id] => 25 
        [company_id] => 1114701 
        [project_name] => Project 3 
        [start_date] => 2016-06-01 00:00:00 
        [end_date] => 2016-06-04 00:00:00 
       ) 
     [taskdetails] => Array 
      (
       [0] => Array(
        [PMST] => Array 
         (
          [id] => 4 
          [project_id] => 25 
          [company_id] => 1114701 
          [task_name] => Final task 3 
          [start_date] => 2016-06-21 00:00:00 
          [end_date] => 2016-06-29 00:00:00 
        ) 
       )   
      ) 
     ) 

    [28] => Array 
     (
      [PMSP] => Array 
       (
        [id] => 28 
        [company_id] => 1114701 
        [project_name] => Project Employee Test 
        [start_date] => 2016-06-10 00:00:00 
        [end_date] => 2016-06-30 00:00:00 
       ) 
      [taskdetails] => Array 
      (
       [0] => Array 
        (
       [PMST] => Array 
        (
         [id] => 9 
         [project_id] => 28 
         [company_id] => 1114701 
         [task_name] => Task Test 333 edit 
         [start_date] => 2016-06-19 00:00:00 
         [end_date] => 2016-06-29 00:00:00 
        ) 
       ) 
       [1] => Array(
       [PMST] => Array 
        (
         [id] => 1 
         [project_id] => 28 
         [company_id] => 1114701 
         [task_name] => Task 1 
         [start_date] => 2016-06-01 00:00:00 
         [end_date] => 2016-06-04 00:00:00 
        ) 
       ) 
      ) 
     ) 
) 

Answer 1

遍歷使用foreach，加入PMST數據輸出數組作爲你走你的輸入數組。看起來可以安全地假設在同一個項目中兩個任務的數據將是相同的。

$output = []; 
foreach ($input as $task) { 
    if (!isset($output[$task["PMSP"]["id"]])) { 
     $output[$task["PMSP"]["id"]] = ["PMSP" => $task["PMSP"], "taskdetails" => []]; 
    } 
    $output[$task["PMSP"]["id"]]["taskdetails"][] = $task["PMST"]; 
} 

Answer 2

參見下面的例子

Example

$data = []; 

foreach ($a as $b) { 
    $key = $b["PMSP"]["id"]; 
    if (!isset($data[$key])) { 
     $data[$key] = ["PMSP" => $b["PMSP"], "taskdetails" => []]; 
    } 
    $data[$key]["taskdetails"][] = $b["PMST"]; 
} 
echo "<pre>"; 
print_r($data);exit(); 

你的最新數據 Example 2