獲取「從多維數組中的特定鍵」的值並放入數組中

Question

我有一個由中繼器創建的大型數組，因此數組可以無限大。我需要：

• 1.搜索雖然陣列
• 2.獲取的[field_18]
• 3.輸出陣列中的所有的值的所有值（ '-5'，「-1 」，ECT）

Array 
(
[field_22] => Mid-Distance Free 
[field_25] => Array 
    (
     [0] => 1 
    ) 

[field_23] => Its a freestyle workout 
[field_6] => Array 
    (
     [0] => Array 
      (
       [field_7] => 1 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [0] => Array 
          (
           [field_11] => 6 
           [field_12] => 50 
           [field_13] => jumping jacks 
           [field_14] => 
          ) 

         [1] => Array 
          (
           [field_11] => 2 
           [field_12] => 20 
           [field_13] => pushups 
           [field_14] => 
          ) 

         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 1 
           [field_13] => pushups 
           [field_14] => 
          ) 

        ) 

      ) 

     [acfcloneindex] => Array 
      (
       [field_7] => 1 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 1 
           [field_13] => pushups 
           [field_14] => 
          ) 

        ) 

      ) 

    ) 

[field_17] => Array 
    (
     [0] => Array 
      (
       [field_7] => 1 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [0] => Array 
          (
           [field_11] => 5 
           [field_12] => 100 
           [field_13] => Freestyle 
           [field_14] => Descend 1-5 
           [field_18] => 5 
          ) 

         [1] => Array 
          (
           [field_11] => 10 
           [field_12] => 50 
           [field_13] => Drill 
           [field_14] => Choice 
           [field_18] => 5 
          ) 

         [2] => Array 
          (
           [field_11] => 1 
           [field_12] => 400 
           [field_13] => Freestyle 
           [field_14] => Negative Split 
           [field_18] => -20 
          ) 

         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 25 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

        ) 

      ) 

     [acfcloneindex] => Array 
      (
       [field_7] => 1 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 25 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

        ) 

      ) 

    ) 

[field_19] => Array 
    (
     [0] => Array 
      (
       [field_7] => 1 
       [field_8] => 0 
       [field_9] => 1 
       [field_10] => Array 
        (
         [0] => Array 
          (
           [field_11] => 20 
           [field_12] => 100 
           [field_13] => Freestyle 
           [field_14] => Hold 500 race pace 
           [field_18] => -5 
          ) 

         [1361771245813] => Array 
          (
           [field_11] => 1 
           [field_12] => 75 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 125 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

        ) 

      ) 

     [acfcloneindex] => Array 
      (
       [field_7] => 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [acfcloneindex] => Array 
          (
           [field_11] => 1 
           [field_12] => 25 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

        ) 

      ) 

    ) 

[field_21] => Array 
    (
     [acfcloneindex] => Array 
      (
       [field_7] => 
       [field_8] => 0 
       [field_9] => 0 
       [field_10] => Array 
        (
         [acfcloneindex] => Array 
          (
           [field_11] => 
           [field_12] => 25 
           [field_13] => Butterfly 
           [field_14] => 
           [field_18] => 
          ) 

        ) 

      ) 

    ) 

) 

我試圖去通過所有的密鑰，但無法弄清楚哪裏從那裏去。這是我使用的代碼。

function array_keys_multi(array $array) 
{ 
$keys = array(); 

foreach ($array as $key => $value) { 
    $keys[] = $key; 

    if (is_array($array[$key])) { 
     $keys = array_merge($keys, array_keys_multi($array[$key])); 
    } 
} 

return $keys; 
} 

Answer 1

試試這個：

function array_key_exists_r($needle, $haystack) 
{ 
    //$result = array(); 
    global $result; 
    if(is_array($haystack)){ 
     foreach ($haystack as $key=>$v) { 
      if (is_array($v)) { 
       array_key_exists_r($needle, $v); 
      } 
      else{ 
       if($key == $needle){ 
        $result[] = $v; 
       } 
      } 
     } 
    } 

    return $result; 
} 


echo "<pre>"; 
print_r(array_key_exists_r("field_18", $your_array)); 

Answer 2

您可以使用array_walk_recursive

$array = array(/*some data*/); 
$result = array(); 
$search_key = 'field_18'; 
array_walk_recursive($array, function($item, $key)use($search_key, &$result){ 
if ($search_key == $key) 
    $result[]=$item; 
}); 
$search_values = array('-5', '-1'); 
$result2 = array(); 
array_walk_recursive($array, function($item, $key)use($search_values, &$result2){ 
if (is_array($item) && array_intersect($item, $search_values)) 
    $result2[]=$item; 
}); 

附：代碼沒有經過測試，只是一個想法。

Answer 3

由於你的數組可以像你使用要求array_walk可能是危險非常大。如果您使用的是PHP 5.5，您可以構建一個簡單的foreach循環併產生相應的值。這樣消費函數可以根據需要獲取儘可能多的條目。