加入使用普通的数组值的两个多维数组 [英] Joining two multidimensional arrays using common array value

问题描述

我有两个数组，我想加盟为一体。两个阵列有一个共同的关键=>价值，我想给一个数组的值插入到另一个让我创建一​​个数组。

I have two arrays that I would like to join into one. Both arrays have a common key=>value and I would like to insert the values of one array to the other so that I to create one array.

阵列1

Array
(
    [0] => Array
        (
            [ID] => 123456
            [Key] => 1000
            [value] => 123.45
        )

    [1] => Array
        (
            [ID] => 789012
            [Key] => 1001
            [value] => 56748.17
        )

)

阵列2

Array
(
    [0] => Array
        (
            [Key] => 1000
            [description] => desc1
        )

    [1] => Array
        (
            [Key] => 1001
            [description] => desc2
        )

我想加盟阵列2阵列1，这样所产生的数组如下：

I would like to join Array 2 with Array 1 so that the resulting Array is as follows:

Array
(
    [0] => Array
        (
            [ID] => 123456
            [Key] => 1000
            [value] => 123.45
            [description] => desc1
        )

    [1] => Array
        (
            [ID] => 789012
            [Key] => 1001
            [value] => 56748.17
            [description] => desc2
        )

)

因此​​，阵列已使用[关键]价值的，好了，关键加入。我看着array_merge等功能，但我似乎无法得到这两个数组来合并正常。

So the arrays have been joined using the [Key] value as the, well, key. I've looked at array_merge and other function but I can't seem to get these two arrays to "merge" properly.

任何帮助将是AP preciated。

Any help would be appreciated.

推荐答案

@ radashk的解决方案将工作，如果你总是可以保证 $ ARRAY1 [$ i] 对应 $数组2 [$ i] 。从我的问题阅读，这不是保证，而是要确保 $ ARRAY1 [$ i] ['关键'] == $数组2 [$ J] ['关键'] ，并结合元素，其中，这些密钥匹配。

@radashk's solution will work if you can always guarantee that $array1[$i] corresponds to $array2[$i]. From my reading of the question, that's not guaranteed, but instead you want to make sure that $array1[$i]['Key'] == $array2[$j]['Key'], and combine elements where those Keys match.

有可能是一个更优雅的解决方案，但我会做这样的：

There may be a more elegant solution, but I would do it like this:

    // builds up new $tmpArray, using the Key as the index
$tmpArray = array();
foreach($array1 as $innerArray1){
            $tmpArray[$innerArray1['Key']] = $innerArray1;
}

    //Merges the values from $array2 into $tmpArray
foreach($array2 as $innerArray2) {
            if (isset($tmpArray[$innerArray2['Key']])) {
                $tmpArray[$innerArray2['Key']] = array_merge($tmpArray[$innerArray2['Key']], $innerArray2);
            }else{
                $tmpArray[$innerArray2['Key']] = $innerArray2;
            }

}

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