对多维数组的每一行求和

Question

I want to sum each row of a multidimensional array :

$number = array
(
    array(0.3,0.67, 0.3),
    array(0.3,0.5,1),
    array(0.67,0.67,0.3),
    array(1,0.3,0.5)
);

The result what i want is like this :

row1 = 1.27
row2 = 1.8
row3 = 1.64
row4 = 1.8

I already tried this code :

for($i = 0; $i < 4; $i++) {
    for($j = 0; $j < 5; $j++) {
        $sumresult[] = array_sum($number[$i][$j]);
    }
}

But it appear an error like this :

Warning: array_sum() expects parameter 1 to be array, double given in xxxx

Answer 1

array_sum needs array not values. Do like this:

for($i = 0; $i < 4; $i++) {
    $sumresult[] = array_sum($number[$i]);
}