PHP 如果在数组中找不到则取消设置父级

Question

如果我在孩子身上找不到针头，我就会遇到一个令我父母不安的问题，由于某种原因，无论我尝试多少种不同的方法，我都无法让它发挥作用，有人可以为我指出正确的方向吗？这是向底深度约为 4 的多维数组抛出的。下面是代码和数组切片的示例。在这种情况下，仅应保留 Array[3]，应删除 Array 的 [1-2]。

array (
  1 => 
  array (
    197015 => 
    array (
      345415 => 
      array (
        'options' => 
        array (
          'Name on Credential' => '',
          'Ordination Month' => '',
          'Ordination Day' => '',
          'Ordination Year' => '',
          'Badge Choice?' => '',
        ),
        'comments' => 
        array (
          213354 => '',
        ),
        'products_name' => '',
        'products_quantity' => '',
        'delivery_country' => '',
        'customers_name' => '',
        'delivery_name' => '',
        'delivery_street_address' => '',
        'delivery_city' => '',
        'delivery_postcode' => '',
        'delivery_state' => '',
        'customers_telephone' => '',
      ),
    ),
  ),

  2 => 
  array (
    197014 => 
    array (
      345414 => 
      array (
        'options' => 
        array (
          'Name on Credential' => '',
          'Ordination Month' => '',
          'Ordination Day' => '',
          'Ordination Year' => '',
          'Badge Choice?' => '',
        ),
        'comments' => 
        array (
          213353 => '',
        ),
        'products_name' => '',
        'products_quantity' => '',
        'delivery_country' => '',
        'customers_name' => '',
        'delivery_name' => '',
        'delivery_street_address' => '',
        'delivery_city' => '',
        'delivery_postcode' => '',
        'delivery_state' => '',
        'customers_telephone' => '',
      ),
    ),
  ),

  3 => 
  array (
    197013 => 
    array (
      345412 => 
      array (
        'options' => 
        array (
          'Name on Credential' => '',
          'Ordination Month' => '',
          'Ordination Day' => '',
          'Ordination Year' => '',
        ),
        'comments' => 
        array (
          213352 => '',
        ),
        'products_name' => 'Jedi',
        'products_quantity' => '1',
        'delivery_country' => '',
        'customers_name' => '',
        'delivery_name' => '',
        'delivery_street_address' => '',
        'delivery_city' => '',
        'delivery_postcode' => '',
        'delivery_state' => '',
        'customers_telephone' => '',
      ),
      345413 => 
      array (
        'options' => 
        array (
          '' => '',
        ),
        'comments' => 
        array (
          213352 => '',
        ),
        'products_name' => '',
        'products_quantity' => '',
        'delivery_country' => '',
        'customers_name' => '',
        'delivery_name' => '',
        'delivery_street_address' => '',
        'delivery_city' => '',
        'delivery_postcode' => '',
        'delivery_state' => '',
        'customers_telephone' => '',
      ),
    ),
  ),

这是我尝试使用但没有成功的最后一个代码的示例，如果您替换 unset($k);返回 false；它将返回针出现在哪个辅助数组中。

    // array_search with recursive searching, optional partial matches and optional search by key
    function array_find_r($needle, &$haystack, $partial_matches = false, $search_keys = false) {
        if(!is_array($haystack)) return false;
        foreach($haystack as $key=>&$value) {
            $what = ($search_keys) ? $key : $value;
            if($needle===$what) return $key;
            else if($partial_matches && @strpos($what, $needle)!==false) return $key;
            else if(is_array($value) && array_find_r($needle, $value, $partial_matches, $search_keys)!==false) return $key;
        }
        unset($k);
    }

$tty = array();
foreach($datas as &$k) {
    $tty[] = array_find_r('Jedi', &$k, true, false);
}

$tty=array_filter($tty); rsort($tty);


echo '<pre>'; var_export($datas); echo '</pre>';

Answer 1

为什么不将您确实需要的数据推送到新数组中并取消整个旧数组的设置？