Question

I have multiple arrays, that get generated when a for loop completes. Now I need to get the total of all these arrays together, but in order, for instance:

array1(2, 4, 6, 8, 10)
array2(2, 4, 6, 8, 10)

I need to add the 2’s together, the 4’s etc etc

Then put them into another array.

Some combination of array_combine and array_sum seems to be the solution but I can’t figure it out.

Any help is greatly appreciated.

Answer 1

You could do this without any php function except count,

$limit = count($array1);
for ($i = 0; $i < $limit; $i++) {
    $array_res[$i] = $array1[$i] + $array2[$i];

should work. This will combine your two arrays and add them in the same order. But be sure you used sort or ksort on both of your arrays before if you’re not sure they are in the same order.