Chris Grigor a écrit :
Morning all,
I am looking to get the differnce in hours / minutes between 2 values.
Currently I have 2 time entries being retruned from mysql, one which is a
start time and
the other which is a finish time.
So
$start = '13:12:17';
$finish = '23:12:17';
How would one get the differnce between these 2 times??
IMHO, the best is to generate a timestamp using mktime for each date.
you can the calculate the difference of timestamps and convert it back
using date.
$tm_start = mktime(substr($start,0,2),substr($start,3,2),
substr($start,5,2));
$tm_finish = mktime(substr($finish,0,2),substr($finish,3,2),
substr($finish,5,2));
$tm_diff = $tm_finish -tm_start;
print date("H:i",$tm_diff);
I don't know if date accepts negative timestamps, so be sure $finish is
later than $start
(you can also put the day in case $finish = "00:00:12" and $start
="15:00:00").
hope this'll help
N F
I have looked at using the following but am not to sure....
function timeDiff($firstTime,$lastTime)
{
// convert to unix timestamps
$firstTime=strtotime($firstTime);
$lastTime=strtotime($lastTime);
// perform subtraction to get the difference (in seconds) between times
$timeDiff=$lastTime-$firstTime;
// return the difference
return $timeDiff;
}
//Usage :
echo timeDiff("$start","$finish");
Thanks
Chris
Nicolas Figaro <http://www.sdv.fr> <[EMAIL PROTECTED] <mailto:[EMAIL
PROTECTED]>>
SDV plurimédia
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