Question

我有这个数组：

Array ( [0] => 
       Array ( 
        [0] => Array ( 
          [07] => Array ( 
               [2] => 352.9
               [3] => 375737
               [4] => 1000000002
           ) ) 
        [1] => Array ( 
           [07] => Array ( 
               [2] => 362.1
               [3] => 375797
               [4] => 1000000002
        ) ) 
)
Array ( [1] => 
        [0] => Array ( 
           [08] => Array ( 
               [2] => 305.7
               [3] => 375857
               [4] => 1000000002
        ) )
    )
)

我需要一个关键07（月份）的最终数组总和，如下所示：

Array ( [0] => 
     Array ( 
            [0] => Array ( 
              [07] => Array ( 
                   [2] => 3254.9 ( the sum of each 07 )
                   [3] => 6521545 ( the sum )
                   [4] => 98474916521621 ( the sum )
               ) ) 
)
Array ( [1] => 
            [0] => Array ( 
              [08] => Array ( 
                   [2] => 305.7 ( not summed cause month 08 is only one )
                   [3] => 375857 ""
                   [4] => 1000000002 ""
               ) ) 
    )
)

任何帮助？

Answer 1

在这里，尝试一下 - 我确信它既不是一个完美的解决方案也不是最佳解决方案（3个foreach-es），但它适用于相当大的数据集......

$ inputArray是包含您提供的数据的多维数组，顺便说一句......

编辑：修正版：

$result = array();

foreach( $inputArray as $subArray ) {

    foreach ( $subArray as $subKey => $member ) {

        if ( empty( $result[$subKey]) ) {

            $result[$subKey] = $member;

        } else {
            foreach ( $member as $id => $subMember ) {

                if ( empty( $result[$subKey][$id]) ) {

                    $result[$subKey][$id] = $subMember;

                } else {

                    $result[$subKey][$id] += $subMember;

                }
            }
        }
    }
}

EDIT2：由于你改变了数组的格式，解决方案是不同的：

注意：$ array1和$ array2是您的“全局” - 预定义数组。

$arrayWrapper = array_merge( ( array ) $array1, ( array ) $array2 );

$result = array();

foreach ( $arrayWrapper as $inputArray ) {

    foreach( $inputArray as $subArray ) {

        foreach ( $subArray as $subKey => $member ) {

            if ( empty( $result[$subKey]) ) {

                $result[$subKey] = $member;

            } else {
                foreach ( $member as $id => $subMember ) {

                    if ( empty( $result[$subKey][$id]) ) {

                        $result[$subKey][$id] = $subMember;

                    } else {

                        $result[$subKey][$id] += $subMember;

                    }
                }
            }
        }
    }
}

使用您的数据进行测试，应该可以正常工作。

干杯。

php数组总和为相同的值

1 个答案: