Calculating time elapsed

Need to calculate the number of seconds (hours) that have elapsed.

Start time: 2006-10-02 7:00:00

End Time: 2006-10-03 13:00:00

I know I have to convert the end points to something, and then find the difference. I just cant seem to find what I am looking for on PHP.net

Any help is apreached.

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SOLUTION:


$date1= "2006-10-02";
$time1= "7:00:00";
$date2= "2006-10-03";
$time2= "13:00:00";

$hours = (strtotime($date2." ".$time2) -strtotime($date1." ".$time1))/(60*60);