Actually for what I need this is exactly what i was looking for. I am converting an asp page that was calculating this difference using VBA functions and I was trying to duplicate things as they were in that page. Thank you Eric H. Lommatsch Programmer Pivotal Data Incorporated 2087 South Grant Street Denver, CO 80210 Tel 303-777-8939 Ext 23 Fax 888-282-9927 www.pivotaldata.com ericl@xxxxxxxxxxxxxxx -----Original message----- From: Fatih P. <fatihpiristine@xxxxxxxxx> Sent: Thu 29-12-2011 16:16 To: admin@xxxxxxxxxxxxxxxxxxx; CC: 'Frank Arensmeier' <farensmeier@xxxxxxxxx>; 'Eric Lommatsch' <ericl@xxxxxxxxxxxxxxx>; php-general@xxxxxxxxxxxxx; Subject: Re: Question about date calculations On 12/30/2011 12:19 AM, admin@xxxxxxxxxxxxxxxxxxx wrote: -----Original Message----- From: Fatih P. [ mailto:fatihpiristine@xxxxxxxxx ] Sent: Thursday, December 29, 2011 5:10 PM To: Frank Arensmeier Cc: Eric Lommatsch; php-general@xxxxxxxxxxxxx Subject: Re: Question about date calculations On Thu, Dec 29, 2011 at 11:40 PM, Frank Arensmeier <farensmeier@xxxxxxxxx> wrote: 29 dec 2011 kl. 22.22 skrev Eric Lommatsch: So far in looking at the functions that are available at http://www.php.net/manual/en/ref.datetime.php I have not been able to figure out how to do what I need to do. Below is a snippet showing approximately what I am trying to do. On the same page you are referring, there are plenty of examples on how to calculate the difference between two dates. Choose one and see if it fits your bill. Or is there any particular reason why you're writing your "own" function? http://www.php.net/manual/en/ref.datetime.php#78981 /frank -- PHP General Mailing List ( http://www.php.net/ ) To unsubscribe, visit: http://www.php.net/unsub.php since you have everything in database tables why not to do this calculation on database side which would be much appropriate place ? /* columns date_start = '2011-02-08'; date_end = ' 2011-03-04'; */ select DATEDIFF(date_end, date_start); http://dev.mysql.com/doc/refman/5.5/en/date-and-time - functions.html#function_datediff I looked at this answer and see the date is from an array of a database and not 2 fields with in the table. While the DATEDIFF() is very useful in queries this will not help you unless both fields are in the table. Try this example $dteStartDate[$intCnt] = new DateTime($row[10]); $dteEndDate[$intCnt] =new DateTime($row[11]); $interval = $dteStartDate[$intCnt]->diff($dteEndDate[$intCnt]); echo $interval->format('%R%a days'); well then look deeper in the question: "I have a page I am trying to create where I am comparing the values of two MySQL date fields with the current date. One of the MySQL Date fields is a class start date, the other is the class end date." all needs to do is modify his query.
