Php数组\从数组数组中取消设置键值的筛选器

我想从嵌套数组中取消设置数组元素

我想执行递归数组过滤器，但我不确定如何有效地执行

下面是原始数组

[
  [a] => 3
  [b] => 0
  [c] => [
    [
      [1] => aa
      [2] => 1
      [3] => [
                [
                  [a1] => 6
                  [a2] => 5781
                  [a3] =>
                      [
                        [1] => 0
                        [2] => 19550
                        [3] => 5781
                      ]
                ]
                [
                  [a1] => 1
                  [a2] => 5781
                  [a3] =>[
                          [1] => 0
                          [2] => 19550
                          [3] => 5781
                      ]
                ]
              ]
    ]
    [
      [1] => aa
      [2] => 1
      [3] => [
                [
                  [a1] => 6
                  [a2] => 5781
                  [a3] =>
                      [
                        [1] => 0
                        [2] => 19550
                        [3] => 5781
                      ]
                ]
                [
                  [a1] => 1
                  [a2] => 5781
                  [a3] =>[
                          [1] => 0
                          [2] => 19550
                          [3] => 5781
                      ]
                ]
              ]
    ]
  ]
]

期望数组

[
  [a] => 3
  [c] => [
    [
      [1] => aa
      [3] => [
                [
                  [a1] => 6
                  [a3] =>
                      [
                        [2] => 19550
                        [3] => 5781
                      ]
                ]
                [
                  [a1] => 1
                  [a3] =>[
                          [2] => 19550
                          [3] => 5781
                      ]
                ]
              ]
    ]
    [
      [1] => aa
      [3] => [
                [
                  [a1] => 6
                  [a3] =>
                      [
                        [2] => 19550
                        [3] => 5781
                      ]
                ]
                [
                  [a1] => 1
                  [a3] =>[
                          [2] => 19550
                          [3] => 5781
                      ]
                ]
              ]
    ]
  ]
]

正如您在每个嵌套数组的预期数组中看到的，一些键值对已被删除。 我需要根据键名筛选数组。 这就是我的密钥名是固定的，需要从数组中的每个子数组中删除

---

任何帮助都将不胜感激。

这里是一个基于递归foreach的解决方案的示例，用于处理您提供的数据集上的代码

    $sourceArray = array("a" => 3, "b" => 0, "c" => array("1" => "aa", "2" => 1, "3" => array("a1" => 6, "a2" => 5781, "a3" => array("1" => 0, "2" => 19550, "3" => 5781)), array( "a1" => 1, "a2" => 5781, "a3" =>array("1" => 0, "2" => 19550, "3" => 5781 ))), array( "1" => "aa", "2" => 1, "3" => array( array( "a1" => 6, "a2" => 5781, "a3" => array( "1" => 0, "2" => 19550,"3" => 5781))), array( "a1" => 1, "a2" => 5781, "a3" =>array(  "1" => 0, "2" => 19550, "3" => 5781))));

    print_r($sourceArray,1);

    function removeKeys($keys, $sourceData) {

        foreach ($sourceData as $key=>$val) {

            if (in_array($key, $keys, true)) {
                unset($sourceData[$key]);
            } else if (is_array($val)) {
                $sourceData[$key] = removeKeys($keys, $sourceData[$key]);
            }
        }
        return $sourceData;
    }

    $keysToRemove = array("b","2","a2");

    $newArray = removeKeys($keysToRemove, $sourceArray);

    print_r($newArray);

实现起来很简单，但获取数据有点困难。在这个例子中，我确实注意到了一个bug，即如果密钥在原始数组中为0，那么即使它不在$keys数组中，它仍然会被删除

但我假设这个例子足以回答您的问题，并且我所陈述的边缘情况不会发生，即0不是数组中的键值。如果您确实使用0作为键，您可以添加额外的逻辑来捕获该情况，但这会使函数的速度减慢一点，因此我将让您自己选择

---

注意，上面提到的错误现在已经修复了，并且在代码中。。。有关原始海报的解决方案，请参见下面的注释，你为什么不想使用foreach？已经检查了该链接，但我不清楚，因为我需要它覆盖数组中的数组，也需要覆盖最里面的数组。@Script47那么我应该使用嵌套foreach的？？？还是递归函数？你的ans帮了大忙。只是更新了关于你已经告诉过的错误，in_数组函数甚至匹配0虽然它不存在。所以可以通过在严格模式下使用in_array来修复此问题，如in_array$key，$keys，true。希望它能帮助别人。很好！对严格参数有很好的理解。很高兴我能帮忙！