從多維數組創建獨特的數組？

Question

我有一個多維數組這有點兒像這樣

Array 
(
    [0] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => 
      [text_generic] => 
     ) 

    [1] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => 
      [text_generic] => 
     ) 

    [2] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => 
      [text_generic] => 
     ) 

    [3] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => 
      [text_generic] => 
     ) 

    [4] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => Random title 
      [text_generic] => [b]This is Random title:[/b] 16 nov 2012 
     ) 

    [5] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
Some text goes here. Blaaaa 
      [title_generic] => 
      [text_generic] => 
     ) 

    [6] => Array 
     (
      [id] => 140309 
      [headline] => Random title 
      [body] => 
      [title_generic] => 
      [text_generic] => 
     ) 

) 

我試着用array_unique()過濾，但只返回

Array 
    (
     [0] => Array 
      (
       [id] => 140309 
       [headline] => Random title 
       [body] => 
       [title_generic] => 
       [text_generic] => 
      ) 
    ) 

但我想有

Array 
    (
     [0] => Array 
      (
       [id] => 140309 
       [headline] => Random title 
       [body] => 
       Some text goes here. Blaaaa 
       [title_generic] => Random title 
       [text_generic] => [b]This is Random title:[/b] 16 nov 2012 
      ) 
    ) 

即只返回全部填充的唯一字段。

在陣列中將只有一個唯一的填充空間，所以沒有辦法，在第一把鑰匙我會有title_generic然後我會有不同的三分之一左右。 body和text_generic也是如此。它們在某些數組中只出現一次。但是ID，標題等都是一樣的（裏面有一個日期等等）。

有沒有一個功能會做這樣的事情？

編輯

我可能不太清楚。我想返回包含來自其他鍵（來自該鍵的數組中的值）的所有信息的數組，這些不同。所以在陣列中的前4個鍵中，我有與id,headline,body,title_generic和text_generic相同的陣列。他們有相同的標識和標題，其餘都是空的。然後在下一個鍵中填入title_generic和text_generic，依此類推。

我需要將填補鍵，如

Array 
    (
     [0] => Array 
      (
       [id] => 140309 
       [headline] => Random title 
       [body] => 
       Some text goes here. Blaaaa 
       [title_generic] => Random title 
       [text_generic] => [b]This is Random title:[/b] 16 nov 2012 
      ) 
    ) 

或

Array 
(
    [id] => 140309 
    [headline] => Random title 
    [body] => 
    Some text goes here. Blaaaa 
    [title_generic] => Random title 
    [text_generic] => [b]This is Random title:[/b] 16 nov 2012 
) 

任一陣列，我不知道該如何解釋這更好的...

Answer 1

$result = array_reduce($array, function (array $result, array $item) { 
    return array_filter($result) + $item; 
}, []); 

這可能會做你想做的事情（這有點不清楚）。

說明：它逐個檢查您的每個項目;它會過濾所有空值，只留下已填充的密鑰（array_filter）;然後它將所有不存在的密鑰（+）從下一個項目添加到它（在array_reduce上閱讀）。最終結果應該是一個數組，其中所有數組中的所有非空鍵合併爲一個，並且該值是循環內遇到的第一個非空值。

Answer 2

我知道已經有一個解決方案。儘管如此，我想爲您呈現一個輕量級的方法，其執行時間和功能相同。

# your data here 
$array = [ 
    [ 
     'id' => '123', 
     'headline' => 'one two three', 
     'body' => 'somebody', 
     'title_generic' => '', 
     'text_generic' => '', 
    ], 
    [ 
     'id' => '123', 
     'headline' => 'one two three', 
     'body' => null, 
     'title_generic' => 'title', 
     'text_generic' => 'text', 
    ], 
]; 

# the aggregate to be created 
$aggregate = []; 

foreach ($array as $el) { 
    if (empty($el)) continue; 

    foreach ($el as $k => $v) { 
     if (empty($v)) continue; 

     if (!isset($aggregate[$k])) { 
      $aggregate[$k] = $v; 
     } 
    } 
} 

# debug print 
echo '<pre>';print_r($aggregate);echo '<pre>'; 

# the output 
Array 
(
    [id] => 123 
    [headline] => one two three 
    [body] => somebody 
    [title_generic] => title 
    [text_generic] => text 
)