Sum two centesimal times - php

Question

I found this code but there is an error I can't found
function sum_time($tempo1, $tempo2) {
$times = array($tempo1, $tempo2);
$seconds = 0;
foreach ($times as $tempo)
{
list($hour, $minute, $second) = explode('.', $tempo);
$seconds += $hour*3600;
$seconds += $minute*60;
$seconds += $second;
}
$hours = floor($seconds/3600);
$seconds -= $hours*3600;
$minutes = floor($seconds/60);
$seconds -= $minutes*60;
// return "{$hours}:{$minutes}:{$seconds}";
return sprintf('%02d.%02d.%02d', $hours, $minutes, $seconds);
}
echo sum_time('3.0.00', '4.83.00');
the result is 08.23.00 instead of 7.83.00
Probably the problem is the code sums times in hh.mm.ss while I want to sum tims in hh.cc (hours.cents)

Answer 1

You can convert it to not use seconds but cents like this,
<?php
function sum_time($tempo1, $tempo2) {
$times = array($tempo1, $tempo2);
$hours = 0;
$cents = 0;
foreach ($times as $tempo)
{
list($hour, $cent) = explode('.', $tempo);
$hours += $hour;
$cents += $cent;
}
$hours += floor($cents / 100);
$cents = $cents % 100;
// return "{$hours}:{$cents}";
return sprintf('%02d.%02d', $hours, $cents);
}
echo sum_time('3.0', '4.83');