PHP在数组中搜索多个键/值对 [英] PHP Search an Array for multiple key / value pairs

问题描述

我有一个阵列列表(在此示例中，我正在使用手机).我希望能够搜索多个键/值对并返回其父数组索引.

I have a array list (for this example I'm using cell phones). I'm wanting to be able to search for multiple key/value pairs and return it's parent array index.

例如，这是我的数组:

// $list_of_phones (array)
Array
(
    [0] => Array
        (
            [Manufacturer] => Apple
            [Model] => iPhone 3G 8GB
            [Carrier] => AT&T
        )

    [1] => Array
        (
            [Manufacturer] => Motorola
            [Model] => Droid X2
            [Carrier] => Verizon
        )
)

我希望能够执行以下操作:

I'm wanting to be able to do something like the following:

// This is not a real function, just used for example purposes
$phone_id = multi_array_search( array('Manufacturer' => 'Motorola', 'Model' => 'Droid X2'), $list_of_phones );

// $phone_id should return '1', as this is the index of the result.

关于如何或应该如何做的任何想法或建议?

Any ideas or suggestions on how I can or should do this?

推荐答案

这可能会有用:

  /**
   * Multi-array search
   *
   * @param array $array
   * @param array $search
   * @return array
   */
  function multi_array_search($array, $search)
  {

    // Create the result array
    $result = array();

    // Iterate over each array element
    foreach ($array as $key => $value)
    {

      // Iterate over each search condition
      foreach ($search as $k => $v)
      {

        // If the array element does not meet the search condition then continue to the next element
        if (!isset($value[$k]) || $value[$k] != $v)
        {
          continue 2;
        }

      }

      // Add the array element's key to the result array
      $result[] = $key;

    }

    // Return the result array
    return $result;

  }

  // Output the result
  print_r(multi_array_search($list_of_phones, array()));

  // Array ( [0] => 0 [1] => 1 )

  // Output the result
  print_r(multi_array_search($list_of_phones, array('Manufacturer' => 'Apple')));

  // Array ( [0] => 0 )

  // Output the result
  print_r(multi_array_search($list_of_phones, array('Manufacturer' => 'Apple', 'Model' => 'iPhone 6')));

  // Array ( )

如输出所示，此函数将返回一个包含所有满足搜索条件的元素的所有键组成的数组.

As the output shows, this function will return an array of all keys with elements which meet all the search criteria.

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