Question

I would like to perform the following server-side in PHP…

If I have one array like this: $array1 = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10), can I create another array which contains the percent of each value (each value divided by the total)? Is there a way to do this without brute forcing with a for loop? I essentially want to create array2

sum_array($array1) produces 55 (1+2+3+4+5+6+7+8+9+10 = 55)

$array2 = array(1.8%, 3.6%, 5.4%, 7.2%, 9%, 10.9%, 12.7%, 15.5%, 16.3%, 18.2%)

Thanks in advance

Answer 1

You can use array_map for this.

$array1 = array(1,2,3,4,5,6,7,8,9,10);
$total = array_sum($array1);

$array2 = array_map(function($a) use($total){
    return round(($a*100) / $total, 1) . '%';
}, $array1);