Dividing a integer equally in X parts

Question

I'm looking for a efficient way in PHP to divide a number in equal part. Number will always be integer (no float).

Let's say that I have an array $hours with values from "1" to "24" ($hours['1'], etc) and a variable $int containing an integer. What I want to acheive is spreading the value of $int equally in 24 parts so I can assing the value to each corresponding array entries. (Should the number be odd, the remaining would be added to the last or first values in the 24).

Regards,

Answer 1

Here's the algorithm you're looking for; it evenly spreads an integer N over K cells:

for i = 0 to K
    array[i] = N / K    # integer division

# divide up the remainder
for i = 0 to N mod K
    array[i] += 1

Answer 2

Try this code

<?php
$num = 400;
$val = floor($num/24);

for($i=0;$i<24;$i++) {
    $arr[$i] = $val;
}

$arr[0] += $num - array_sum($arr);
?>