PHP：根據array2值更改array1值

Question

我有2個數組。有時array1中的鍵/值可能等於array2的鍵/值。如果是這樣，請將來自array2的特定鍵/值的「狀態」更改爲新值。那有意義嗎？

這裏就是我在：

foreach($array1 as $i=>$x){ 
      foreach($array2 as $k=>$y){ 
      if($x['url'] == $y['url']){ 

       // Up to here works 

       foreach($i as &$value) { 
       $value['status'] = 'new value'; 
      } 

       break; 
      } 
      } 
     } 

這是我的數組：

array(1) { 
    [0]=> array(1) { 
     ["url"]=> string(104) "aHR0cDovL3lvdXR1YmUuY29t" 
     ["date"]=> string(19) "2014-01-06 21:44:39" 
     ["status"]=> string(1) "0" 
    } 

    [1]=> array(1) { 
     ["url"]=> string(28) "d3d3LnR3aXR0ZXIuY29t" 
     ["date"]=> string(19) "2014-01-06 14:28:32" 
     ["status"]=> string(1) "0" 
    } 
} 

和數組2：

array(2) { 
    [0]=> array(2) { 
     ["url"]=> string(104) "aHR0cDovL3lvdXR1YmUuY29t" 
     ["date"]=> string(19) "2014-01-06 21:44:39" 
    } 

    [1]=> array(2) { 
     ["url"]=> string(28) "aHR0cDovL3d3dy5nb29nbGUuY29t" 
     ["date"]=> string(19) "2014-01-06 14:28:32" 
    } 
} 

到它的工作原理的評論。從那裏以後，我如何才能將該特定鍵/值更改爲新值？我目前的例子將所有關鍵'狀態'更改爲'新值'。

Answer 1

你不通過array1必須循環再次只是改變了它的關鍵

$array1[$i]['status'] = 'new value'; 

Answer 2

如何：

<?php 
    $array1 = array(
     array(
      "url" => "aHR0cDovL3lvdXR1YmUuY29t", 
      "date" => "2014-01-06 21:44:39", 
      "status" => "0" 
      ) 
     ); 
    $array2 = array(
     array(
      "url" => "aHR0cDovL3lvdXR1YmUuY29t", 
      "date" => "2014-01-06 21:44:39", 
      ) 
     ); 

    array_walk($array2, function($arr2) use (&$array1) 
    { 
     foreach($array1 as &$arr1) 
     { 
      if($arr2['url'] == $arr1['url']) 
       $arr1['status'] = "something"; 
     } 
    }); 

    print_r($array1); 

輸出：

Array 
(
    [0] => Array 
     (
      [url] => aHR0cDovL3lvdXR1YmUuY29t 
      [date] => 2014-01-06 21:44:39 
      [status] => something 
     ) 
)