Calculate elapsed time in php

Question

Hi All I\'m trying to calculate elapsed time in php. The problem is not in php, it\'s with my mathematical skills. For instance: Time In: 11:35:20 (hh:mm:ss), now say the

Answer 1

Using PHP >= 5.3 you could use DateTime and its method DateTime::diff(), which returns a DateInterval object:

$first  = new DateTime( '11:35:20' );
$second = new DateTime( '12:00:45' );

$diff = $first->diff( $second );

echo $diff->format( '%H:%I:%S' ); // -> 00:25:25