相同值的数组总和 [英] Sum of array for same values

问题描述

我有这个数组:

Array (
  [0] => Array (
    [TaxeName] => TPS
    [TaxeAmount] => 7
    [Price] => 14
  )
  [1] => Array (
    [TaxeName] => TVQ
    [TaxeAmount] => 9.975
    [Price] => 10
  )
  [2] => Array (
    [TaxeName] => TVQ
    [TaxeAmount] => 9.975
    [Price] => 18
  )
)

如何获得另一个数组:
- 将 TaxeName 和 TaxeAmount 和
分组- 制作金额的总和 Price ?

How I can get another array:
- Grouping the TaxeName and the TaxeAmount and
- Making the sum of the amount Price ?

像这样:

Array (
  [0] => Array (
    [TaxeName] => TPS
    [TaxeAmount] => 7
    [Price] => 14
  )
  [1] => Array (
    [TaxeName] => TVQ
    [TaxeAmount] => 9.975
    [Price] => 28
  )
)

推荐答案

可以用嵌套的foreach来完成:

$original = array(.......); // your current array
$newArr = array();

foreach($original as $origVal){
    $exists = false;
    foreach($newArr as $key => $newVal){
        if($newVal['TaxeName'] == $origVal['TaxeName']){
            $newArr[$key]['Price'] += $origVal['Price'];
            $exists = true;
            break;
        }
    }

    if(!$exists){
        $newArr[] = $origVal;
    }
}

输出

Array
(
    [0] => Array
        (
            [TaxeName] => TPS
            [TaxeAmount] => 7
            [Price] => 14
        )

    [1] => Array
        (
            [TaxeName] => TVQ
            [TaxeAmount] => 9.975
            [Price] => 28
        )

)

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