php - 在php中加入两个数组

Question

我有两个数组，第一个数组名称是 $balances，输出如下:

Array
(
    [0] => Array
        (
            [index] => 0
            [account_id] => 1
            [company_id] => 6
            [company_code] => ABBANK
        )

    [1] => Array
        (
            [index] => 6
            [account_id] => 1
            [company_id] => 147
            [company_code] => IFIC
        )

    [2] => Array
        (
            [index] => 11
            [account_id] => 1
            [company_id] => 293
            [company_code] => SOUTHEASTB 
        )
)

第二个数组名称是 $market，它的输出是:

Array
(
    [0] => Array
        (
            [company] => SOUTHEASTB
            [high] => 0
            [low] => 0

        )

    [1] => Array
        (
            [company] => IFIC
            [high] => 0
            [low] => 0

        )

    [2] => Array
        (
            [company] => ABBANK
            [high] => 0
            [low] => 0
        )
)

我合并这两个数组并得到以下输出。第二个数组使用下面的代码将数组值推送到第一个数组，产生的结果不符合我的要求:

$result = array();
foreach ($balances as $key => $value) {
  $result[] = array_merge($value, $market[$key]);
}

输出:

Array
(
    [0] => Array
        (
            [index] => 0
            [company_code] => ABBANK
            [company] =>  1JANATAMF                                               
            [high] => 5.3
            [low] => 5
        )

    [1] => Array
        (
            [index] => 6
            [company_code] => IFIC           
            [company] => 1STPRIMFMF                                              
            [high] => 16.9
            [low] => 16.2
        )

    [2] => Array
        (
            [index] => 11
            [company_code] => SOUTHEASTB
            [company] =>  AAMRANET                                                
            [high] => 44
            [low] => 43
        )
)

我的挑战是检查 $balances[company_code] == $market['company'] 并将第二个数组附加到第一个数组，这将产生以下结果。

Array
(
    [0] => Array
        (
            [index] => 0
            [account_id] => 1
            [company_id] => 6
            [company_code] => ABBANK
            [high] => 0
            [low] => 0
        )

    [1] => Array
        (
            [index] => 6
            [account_id] => 1
            [company_id] => 147
            [company_code] => IFIC
            [high] => 0
            [low] => 0
        )

    [2] => Array
        (
            [index] => 11
            [account_id] => 1
            [company_id] => 293
            [company_code] => SOUTHEASTB
            [high] => 0
            [low] => 0 
        )
)

但是上面的代码块不能满足我的需求。因为此代码块仅使用合并功能将第二个数组推送到第一个数组。我尝试了我库存中的所有其他解决方案。有没有人可以给我任何解决方案，将不胜感激。

Answer 1

这可以通过使用 array_column 以最少的代码解决。要按公司名称重新索引两个数组，然后可以使用 array_merge_recursive 合并这两个数组:

$output = array_merge_recursive(array_column($balances, null, 'company_code'), 
                                array_column($market, null, 'company'));

输出:

Array
(
    [ABBANK] => Array
        (
            [index] => 0
            [account_id] => 1
            [company_id] => 6
            [company_code] => ABBANK
            [company] => ABBANK
            [high] => 0
            [low] => 0
        )
    [IFIC] => Array
        (
            [index] => 6
            [account_id] => 1
            [company_id] => 147
            [company_code] => IFIC
            [company] => IFIC
            [high] => 0
            [low] => 0
        )
    [SOUTHEASTB] => Array
        (
            [index] => 11
            [account_id] => 1
            [company_id] => 293
            [company_code] => SOUTHEASTB
            [company] => SOUTHEASTB
            [high] => 0
            [low] => 0
        )
)

如果你想要一个数字索引的结果，只需将 $output 传递给 array_values .

$output = array_values($output);

Demo on 3v4l.org