getting a time period with stepping in php (I know, I know... CarbonPeriod)

timeperiodwithstepping

<?php

printf("<pre>\n");

$secStep = 5;
$a = strtotime("2020-09-24 07:04:35 UTC");
$b = strtotime("2020-09-24 07:05:50 UTC");
var_dump($a);
var_dump($b);

$timeDiffSec = $b - $a;
var_dump($timeDiffSec);

for ($i = $secStep; $i < $timeDiffSec; $i+=$secStep) {
    $iTimeSeconds = $a + $i;
    $iTimeString = strftime('%F %T %Z', $iTimeSeconds);
    echo "timestep: $i total: $splitDiffSec -- $iTimeString\n";
}
printf("</pre>\n");

?>