Question

我有2D数组

$array1=[["a1", "a2", "h3", "a4"],["b1", "b2", "l3", "b4"], ["c1", "c2", "o3", "c4"],["d1", "d2", "k3", "d4"]];

$array1=[["b1", "b2", "l3", "b4"], ["a1", "a2", "h3", "a4"], ["d1", "d2", "d3", "d4"], ["c1", "c2", "t3", "c4"]];



Array
(
    [0] => Array
        (
            [0] => a1
            [1] => a2
            [2] => Array
                (
                    [0] => h3
                    [1] => h3
                )

            [3] => a4
        )

    [1] => Array
        (
            [0] => b1
            [1] => b2
            [2] => Array
                (
                    [0] => l3
                    [1] => l3
                )

            [3] => b4
        )
    [2] => Array
        (
            [0] => c1
            [1] => c2
            [2] => Array
                (
                    [0] => o3
                    [1] => t3
                )

            [3] => c4
        )
    [4] => Array
        (
            [0] => d1
            [1] => d2
            [2] => Array
                (
                    [0] => k3
                    [1] => d3
                )

            [3] => d4
        )

)

[[a1，a2，a3，a4]，[b1，b2，b3，b4]]

[[a1，a2，d3，a4]，[b1，b2，e3，b4]]

我希望它们合并，所以最终的数组将是

[[a1，a2，[a3，d3]，a4]，[b1，b2，[b3，e3]，b4]]

到目前为止，我想出了这个，但它对我来说看起来很混乱，有没有其他解决方案如何在3个相同值上合并2D数组呢？

 $newArr = [];
  foreach($firstArray as $fArray){
   foreach($secondArray as $sArray){
        if($fArray['first_item'] === $sArray['first_item'] &&
           $fArray['second_item'] === $sArray['second_item'] &&
           $fArray['fourth_item'] === $sArray['fourth_item']){
             $newArr[] = [$farray['first_item'], $fArray['second_item],
             [$fArray['third_item'], $sArray['third_item']], $fArray['fourth_item]]
          }
   }
}

Answer 1

我已更正您当前的代码以获得所需的输出。我已经更改了您当前在帖子中使用的索引。

Try this code snippet here

<?php

ini_set('display_errors', 1);
$firstArray = [["a1", "a2", "h3", "a4"],["b1", "b2", "l3", "b4"], ["c1", "c2", "o3", "c4"],["d1", "d2", "k3", "d4"]];

$secondArray = [["b1", "b2", "l3", "b4"], ["a1", "a2", "h3", "a4"], ["d1", "d2", "d3", "d4"], ["c1", "c2", "t3", "c4"]];
$result = array();
$newArr = [];
foreach ($firstArray as $fArray)
{
    foreach ($secondArray as $sArray)
    {
        if ($fArray[0] === $sArray[0] && $fArray[1] === $sArray[1] && $fArray[3] === $sArray[3])
        {
            $newArr[] = [$fArray[0], $fArray[1],
             [$fArray[2], $sArray[2]], $fArray[3]];
        }
    }
}
print_r($newArr);

<强>输出：

Array
(
    [0] => Array
        (
            [0] => a1
            [1] => a2
            [2] => Array
                (
                    [0] => h3
                    [1] => h3
                )

            [3] => a4
        )

    [1] => Array
        (
            [0] => b1
            [1] => b2
            [2] => Array
                (
                    [0] => l3
                    [1] => l3
                )

            [3] => b4
        )

    [2] => Array
        (
            [0] => c1
            [1] => c2
            [2] => Array
                (
                    [0] => o3
                    [1] => t3
                )

            [3] => c4
        )

    [3] => Array
        (
            [0] => d1
            [1] => d2
            [2] => Array
                (
                    [0] => k3
                    [1] => d3
                )

            [3] => d4
        )

)

在2个相同的值上合并2D数组

1 个答案: