- date: documentation ( source)
- strtotime: documentation ( source)
<?php
function get_time_difference($time1, $time2) {
$time1 = strtotime("1980-01-01 $time1");
$time2 = strtotime("1980-01-01 $time2");
if ($time2 < $time1) {
$time2 += 86400;
}
return date("H:i:s", strtotime("1980-01-01 00:00:00") + ($time2 - $time1));
}
echo get_time_difference("10:25:30", "22:40:59"); // 12:15:29
?>