php数组使用多维数组合并键

Question

这是我的阵列：

array 
  0 => 
    array 
      'id' => int 220950
      'order_reference' => string '600125479' 
  1 => 
    array 
      'id' => int 220985
      'order_reference' => string '498638' 

这是我的另一个阵列

array 
      0 => 
        array 
          'entity_id' => 1
          'order_status' => 'test' 
      1 => 
        array 
          'entity_id' => 2
          'order_status' => 'test2' 

我的目标是实现这个目标：

array 
      0 => 
        array 
          'id' => int 220950
          'order_reference' => string '600125479'
          'entity_id' => 1
          'order_status' => 'test' 
      1 => 
        array 
          'id' => int 220985
          'order_reference' => string '498638'
          'entity_id' => 2
          'order_status' => 'test2'

使用array_merge我设法得到这个（不是我想要的目标），这就是我在stackoverflow和其他论坛上发现的：

array 
      0 => 
        array 
          'id' => int 220950
          'order_reference' => string '600125479' 
      1 => 
        array 
          'id' => int 220985
          'order_reference' => string '498638' 
         array 
      2 => 
        array 
          'entity_id' => 1
          'order_status' => 'test'
      3 => 
        array 
          'entity_id' => 2
          'order_status' => 'test2'

欢迎任何想法或建议:)谢谢

使用foreach我可以添加键值，但我正在寻找一种更干净的方式:)

Answer 1

有一点需要注意，你的数组没有一个联合值可以比较，所以你需要确保键总是排成一行，我认为像这样的循环可以解决这个问题：

for ($i = 0; $i < count($array1); $i++)
{
    $new_array[] = array_merge($array1[$i], $array2[$i]);
}

编辑：您也可以使用array_map()但它不提供任何性能优势AFAIK，并且整体可读性较差。

$new_array = array_map(function($a1_v, $a2_v) { return array_merge($a1_v, $a2_v); }, $a1, $a2);

Answer 2

以下是使用array_map和array_merge_recursive解决问题的答案。

<?php

$array1 = array(
    [
        "id" => 220950,
        "order_reference" => "600125479"
    ],
    [
        "id" => 220985,
        "order_reference" => "498638"
    ]
);

$array2 = array(
    [
        "entity_id" => 1,
        "order_status" => "test"
    ],
    [
        "entity_id" => 2,
        "order_status" => "test"
    ]
);

$results = array();

array_map(function($array1, $array2) use (&$results) {

    $results[] = array_merge_recursive($array1, $array2);

}, $array1, $array2);

var_dump($results);

这将输出：

array (size=2)
  0 => 
    array (size=4)
      'id' => int 220950
      'order_reference' => string '600125479' (length=9)
      'entity_id' => int 1
      'order_status' => string 'test' (length=4)
  1 => 
    array (size=4)
      'id' => int 220985
      'order_reference' => string '498638' (length=6)
      'entity_id' => int 2
      'order_status' => string 'test' (length=4)

Answer 3

将array_merge与array_map一起使用

    $array1 = array(
    [
        "id" => 220950,
        "order_reference" => "600125479"
    ],
    [
        "id" => 220985,
        "order_reference" => "498638"
    ]
);

$array2 = array(
    [
        "entity_id" => 1,
        "order_status" => "test"
    ],
    [
        "entity_id" => 2,
        "order_status" => "test2"
    ]
);

$result = array_map("array_merge",$array1,$array2);
print_r($result);

产量

    Array
(
    [0] => Array
        (
            [id] => 220950
            [order_reference] => 600125479
            [entity_id] => 1
            [order_status] => test
        )

    [1] => Array
        (
            [id] => 220985
            [order_reference] => 498638
            [entity_id] => 2
            [order_status] => test2
        )

)

工作实例