Question

我在多维数组中有这些值：

array
  0 => 
    array
      0 => float 0.11521247274056
      1 => float 0.081839214900844
      2 => float 0.084168850912272
      3 => float 0.18520831868443
  1 => 
    array
      0 => float 0.92169978192452
      1 => float 0.65471371920675
      2 => float 0.84168850912272
      3 => float 0.43215274359699
  2 => 
    array
      0 => float 0.23042494548113
      1 => float 0.13094274384135
      2 => float 0.16833770182454
      3 => float 0.18520831868443
  3 => 
    array
      0 => float 0.038404157580188
      1 => float 0.09353053131525
      2 => float 0.056112567274848
      3 => float 0.061736106228142

现在，我想要的是每组的总和。类似的东西：

[0] [0] + [0] [1] + [0] [2] + [0] [3]

使用此代码，我收到此错误：array_sum（）期望参数1为数组，双给定

for ($i = 0; $i < $numCol; $i++) {
    for ($j = 0; $j < $numCol; $j++) {
        $sumResult[] = array_sum($result[$i][$j]);
    }
}

Answer 1

您需要将数组传入array_sum但您要明确传递每个值。试试这个：

for ($i = 0; $i < $numCol; $i++) {
    $sumResult[] = array_sum($result[$i]);        
}

array_sum（）期望参数1是数组，double给定

1 个答案: