PHP在数组中搜索多个键/值对

Question

我有一个数组列表(对于这个例子,我正在使用手机).我希望能够搜索多个键/值对并返回它的父数组索引.

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
        )
)

我想要能够做如下的事情:

// 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.

关于我如何能够或应该如何做的任何想法或建议？

Answer 1

也许这会很有用:

  /**
   * 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,此函数将返回包含符合所有搜索条件的元素的所有键的数组.

Answer 2

您可以使用 array_intersect_key 和 array_intersect 和 array_search

检查array_intersect_key php 手册以获取具有匹配键的项目数组

和array_intesect php 手册以获取具有匹配值的项目的数组

你可以使用数组中的键值 $array[key]

并使用 array_search 获取数组中的键值 $key = array_search('green', $array);

php.net/manual/en/function.array-search.php

Answer 3

我最终做了以下事情。它不漂亮，但效果很好。对于任何阅读的人，请随时使用 DRYer 答案进行更新：

// Variables for this example
$carrier = 'Verizon';
$model = 'Droid X2';
$manufacturer = 'Motorola';

// The foreach loop goes through each key/value of $list_of_phones and checks
// if the given value is found in that particular array. If it is, it then checks
// a second parameter (model), and so on.
foreach ($list_of_phones as $key => $object)
{
    if ( array_search($carrier, $object) )
    {
        if ( array_search($model, $object) )
        {
            if ( array_search($manufacturer, $object) )
            {
                // Return the phone from the $list_of_phones array
                $phone = $list_of_phones[$key];
            }
        }
    }
}

奇迹般有效。