如何将2个具有相同索引和值的数组与php组合？ [英] How to combine 2 arrays that have the same index and value with php?

问题描述

我有2个数组，如下所示：

I have 2 array like follows:

$array1 = [
 '0' => [
   'no_invoice' => 'INV0001',
   'product_code' => '1111111',
  ], 
 '1' => [
  'no_invoice' => 'INV0001',
  'product_code' => '1111112',
 ]
];

  $array2 = [
    '0' => [
      'product_code' => '1111112',
      'free_valie' => 839,
      'count' => 1240
    ],
  ];

是否可以合并上面的数组，像这样：

Is it possible to combine arrays above to be like this:

Array(
 [0] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111111',
  )
 [1] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111112',
    'free_valie' => 839,
    'count' => 1240
  )
)

因此，如果数组具有相同的产品代码，则它将像上面的示例一样加入。

So, if array have same product code, then it will join like the example above.

我已经尝试过使用数组合并， array_merge（$ array1，$ array2）;
但是结果是这样的：

I have been tried with use array merge, array_merge($array1, $array2); But the result is like this:

Array(
 [0] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111111',
  )
 [1] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111112',
  )
 [2] => Array
  (
    'product_code' => '1111112',
    'free_valie' => 839,
    'count' => 1240
  )
)

推荐答案

此代码将满足您的要求。使用$ array1 中的每个值。 nofollow noreferrer> array_search 以查看<$ c $中是否也存在该实体的 product_code c> $ array2 （通过浏览使用<提取的 $ array2 的 product_code 列a href = http://php.net/manual/zh/function.array-column.php rel = nofollow noreferrer> array_column ） 。如果是，则合并值。请注意，我们在foreach中使用& $ val ，从而导致该值通过引用传递，从而允许在循环中对其进行修改

This code will do what you want. It loops over each value in $array1, using array_search to see if the entrie's product_code is also present in $array2 (by looking through the product_code column of $array2 extracted using array_column). If it is, the values are merged. Note that we use &$val in the foreach, causing the value to be passed by reference which allows it to be modified in the loop

foreach ($array1 as &$val) {
    if (($k = array_search($val['product_code'], array_column($array2, 'product_code'))) !== false) {
        $val = array_merge($val, $array2[$k]);
    }
}

print_r($array1);

输出：

Array
(
    [0] => Array
        (
            [no_invoice] => INV0001
            [product_code] => 1111111
        )

    [1] => Array
        (
            [no_invoice] => INV0001
            [product_code] => 1111112
            [free_valie] => 839
            [count] => 1240
        )

)

在3v4l.org上进行演示

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