Question

我想比较两个不同的数组。我正在寻找array1中出现但不出现在array2中的值。我一直在撞墙，因为它似乎很简单但不起作用。

我试图找到数组的键然后我要搜索它们

$orgKey;
      foreach($org as $k => $v){
          $orgKey[$k][] = $v['title'];
      }
      $newKey;
      foreach($new as $k => $v){
          $newKey[$k][] = $v['title'];

      }
      echo "orgkey";
      echo print_r($orgKey);
      echo "newkey<br/>";
      echo print_r($newKey);   
      $e = array_diff($orgKey,$newKey);
      echo print_r($e);

但每次都给我一个空数组。

我也在foreach中尝试了foreach，并意识到我无法找到如何搜索不存在的值，因为foreach循环本身没有重复。

foreach($org as $k => $v){
          foreach($new as $a => $b){  
              $count = count($new);
              $i = 0;
              if($v['title'] == $b['title']){
       //This is where i realize i will find duplicates of values that don't exist

              }

          }
      }

我的阵列。 $组织

[0] => Array
        (
            [title] => Ahiris Angels
            [r_id] => 1276
            [t_id] => 1277
            [name] => 
            [column1] => 
            [column2] => 
        )

    [1] => Array
        (
            [title] => Alistars Stars
            [r_id] => 1276
            [t_id] => 1278
            [name] => 
            [column1] => 
            [column2] => 
        )

    [2] => Array
        (
            [title] => Ammumu
            [r_id] => 1276
            [t_id] => 1279
            [name] => 
            [column1] => 
            [column2] => 
        )

$ new数组可以是任何值，但保留$ org数组的结构。

我的目标是拥有一个类似这个$ org的数组

 [0] => Array
            (
                [title] => Ahiris Angels
                [r_id] => 1276
                [t_id] => 1277
                [name] => 
                [column1] => 
                [column2] => 
            )

        [1] => Array
            (
                [title] => Alistars Stars
                [r_id] => 1276
                [t_id] => 1278
                [name] => 
                [column1] => 
                [column2] => 
            )

将其与$ new

进行比较

[0] => Array
                (
                    [title] => Ahiris Angels
                    [r_id] => 1276
                    [t_id] => 1277
                    [name] => 
                    [column1] => 
                    [column2] => 
                )

我的结果将是

[1] => Array
                (
                    [title] => Alistars Stars
                    [r_id] => 1276
                    [t_id] => 1278
                    [name] => 
                    [column1] => 
                    [column2] => 
                )

Answer 1

这应该做你想做的事情：

foreach ($org as $v)
{
    $orgKey[$v['title']] = $v;
}
foreach ($new as $v)
{
    $newKey[$v['title']] = $v;
}
$e = array_diff_key($orgKey, $newKey);
$e = array_values($e);

对array_values的最后一次通话是可选的;它只是将顺序整数重新分配给键而不是留在标题中。

PHP array_diff错误

1 个答案: