Question

The future time is :2012-05-26 00:00:00

supposed there are three variable: $hour $minute $second

now, i want to using the future time subtract now time. then give the left hour to $hour,give the left minute to $minute,give the left second to $second.

i am sorry i am new of php, now i get stucked how to do the math operation ? thank you

Answer 1

The following are the math operations for the difference in hours,minutes and seconds

$future_datetime = '2012-05-26 00:00:00';
$future = strtotime($future_datetime); //future datetime in seconds
$now_datetime = date('Y-m-d H:i:s');
$now = date('U'); //now datetime in seconds

//The math for calculating the difference in hours, minutes and seconds
$difference = $future - $now;
$second = 1;
$minute = 60 * $second;
$hour = 60 * $minute;
$difference_hours = floor($difference/$hour);
$remainder = $difference - ($difference_hours * $hour);
$difference_minutes = floor($remainder/$minute);
$remainder = $remainder - ($difference_minutes * $minute);
$difference_seconds = $remainder;
echo "The difference between $future_datetime and $now_datetime is $difference_hours hours, $difference_minutes minutes and $difference_seconds seconds";