find difference between time seconds in php code example
Example 1: php time difference in hours
date_default_timezone_set("Africa/Johannesburg");
$now = new DateTime();
$future_date = new DateTime('2020-10-21 00:00:00');
$interval = $future_date->diff($now);
echo ($interval->format("%a") * 24) + $interval->format("%h"). " hours". $interval->format(" %i minutes ");
print_r($now->format('Y-m-d H:i:s'));
Example 2: difference of two dates in seconds php
$timeFirst = strtotime('2011-05-12 18:20:20');
$timeSecond = strtotime('2011-05-13 18:20:20');
$differenceInSeconds = $timeSecond - $timeFirst;